[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:2947":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":12,"weighting":13,"nolocadd":14,"blacklisted":14,"mindat_formula":15,"mindat_formula_note":11,"ima_formula":16,"elements":17,"sigelements":23,"key_elements":11,"impurities":24,"cim":25,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":11,"discovery_year":29,"strunz10ed1":30,"strunz10ed2":31,"strunz10ed3":32,"strunz10ed4":33,"dana8ed1":34,"dana8ed2":35,"dana8ed3":36,"dana8ed4":35,"csystem":37,"cclass":38,"spacegroup":39,"spacegroupset":40,"a":41,"b":42,"c":43,"alpha":40,"beta":40,"gamma":40,"aerror":44,"berror":45,"cerror":45,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":46,"csmetamict":14,"commentcrystal":47,"twinning":48,"tranglide":11,"parting":49,"epitaxidescription":11,"morphology":50,"tlform":11,"hmin":45,"hmax":51,"hardtype":11,"vhnmin":40,"vhnmax":40,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":52,"dmeas2":53,"dcalc":54,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":55,"commentluster":11,"diapheny":56,"streak":57,"colour":58,"commentcolor":11,"colors":59,"streak_colors":67,"luminescence":11,"uv":68,"cleavage":69,"cleavagetype":70,"fracturetype":71,"tenacity":72,"commentbreak":11,"opticaltype":73,"opticalsign":74,"opticalalpha":75,"opticalalpha2":76,"opticalalphaerror":11,"opticalbeta":77,"opticalbeta2":78,"opticalbetaerror":11,"opticalgamma":79,"opticalgamma2":80,"opticalgammaerror":11,"opticalomega":40,"opticalomega2":40,"opticalomegaerror":11,"opticalepsilon":40,"opticalepsilon2":40,"opticalepsilonerror":11,"opticaln":40,"opticaln2":40,"opticalnerror":11,"optical2vcalc":81,"optical2vcalc2":82,"optical2vcalcerror":11,"optical2vmeasured":83,"optical2vmeasured2":84,"optical2vmeasurederror":11,"rimin":85,"rimax":86,"opticaldispersion":87,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":88,"opticalr":11,"specdispm":11,"ir":11,"electrical":89,"magnetism":11,"thermalbehaviour":90,"other":91,"industrial":11,"occurrence":11,"otheroccurrence":92,"type_specimen_store":93,"description_short":94,"aboutname":95,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":96,"reviewed_at":11,"variety_of":11,"varieties":97,"group_members":102,"associates":133,"confused_with":203,"type_localities":204,"occurrence_total":211,"citations":212,"images":330,"structures":989,"synonyms":1020,"language_names":1047,"wikidata_qid":1167,"texts":1168},2947,"1:1:2947:2","37817d14-d171-4e06-af95-767f12a7eaff","Natrolite","Ntr",0,"mineral",null,29157,37989,false,"Na\u003Csub>2\u003C\u002Fsub>Al\u003Csub>2\u003C\u002Fsub>Si\u003Csub>3\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","Na\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>3\u003C\u002Fsub>Al\u003Csub>2\u003C\u002Fsub>)O\u003Csub>10\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O",[18,19,20,21,22],"Al","Na","Si","O","H",[18,19,20,21,22],"Ca,K","16.2.5",[27,28],"APPROVED","GRANDFATHERED","1803","9","G","A","05","77","1","5","Orthorhombic",6,23,"0","18.2930","18.6430","6.5860",2,5,8,"Data for chemically pure natrolite.","On {110}, {011}, {031}.","on {010}","Crystals short to long prismatic.  From hairlike up to 1 meter in length and 10 cm wide.\r\n\r\nCommon forms:\r\n{110}, {100}, {010}, {111}, {101}, {331}, {551}\r\nOther forms:\r\n{001}, {610}, {310}, {740}, {590}, {120}, {301}, {601}, {031}, {221}, {511}, {311}, {131}, {391} and more.",5.5,"2.2","2.26","2.25","Vitreous,Pearly","Transparent,Translucent","White","White, colorless, red, yellow, brown, green, bluish",[60,61,62,63,64,65,66],"white","colorless","red","yellow","brown","green","blue",[60],"Commonly orange to yellow.","on {110}","Perfect","Irregular\u002FUneven","brittle","Biaxial","+","1.473","1.483","1.476","1.486","1.485","1.496","48","62","58","64",1.473,1.496,"r \u003C v weak","X = a; Y = b; Z = c.","Pyroelectric, piezeoelectric.","In a closed tube, becomes white and opaque. Before the blowpipe, fuses at 2, quietly, to a clear glass.","Gelatinizes in acids.","Cavities in amygdaloidal basalts","Museum für Naturkunde, Humboldt-Universität-Berlin, Germany, numbers 1998-4177, 1999-4969 (type?).","Zeolite Group, Natrolite subgroup.","Named in 1803 by Martin H. Klaproth from the Greek natron, \"soda,\" in allusion to its sodium content and lithos, \"stone.\" Not to be confused with natrolite (of William Hyde Wollaston) in 1812 for a soda-bearing scapolite.","2025-08-11 12:14:22",[98],{"id":99,"name":100,"entrytype":44,"csystem":11,"ima_formula":11,"mindat_formula":15,"hmin":11,"hmax":11,"dmeas":40,"dcalc":40,"primary_image_id":101},32526,"Spreustein",89332,[103,111,118,126],{"id":104,"name":105,"entrytype":9,"csystem":37,"ima_formula":106,"mindat_formula":107,"hmin":108,"hmax":45,"dmeas":54,"dcalc":109,"primary_image_id":110},1724,"Gonnardite","(Na,Ca)\u003Csub>2\u003C\u002Fsub>(Si,Al)\u003Csub>5\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub> · 3H\u003Csub>2\u003C\u002Fsub>O","(Na,Ca)\u003Csub>2\u003C\u002Fsub>(Si,Al)\u003Csub>5\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>·3H\u003Csub>2\u003C\u002Fsub>O",4,"2.33",10203,{"id":112,"name":113,"entrytype":9,"csystem":37,"ima_formula":114,"mindat_formula":115,"hmin":45,"hmax":45,"dmeas":53,"dcalc":116,"primary_image_id":117},2657,"Mesolite","Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>9\u003C\u002Fsub>Al\u003Csub>6\u003C\u002Fsub>)O\u003Csub>30\u003C\u002Fsub> · 8H\u003Csub>2\u003C\u002Fsub>O","Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>2\u003C\u002Fsub>Si\u003Csub>9\u003C\u002Fsub>Al\u003Csub>6\u003C\u002Fsub>O\u003Csub>30\u003C\u002Fsub>·8H\u003Csub>2\u003C\u002Fsub>O","2.27",15943,{"id":119,"name":120,"entrytype":9,"csystem":121,"ima_formula":122,"mindat_formula":123,"hmin":45,"hmax":51,"dmeas":124,"dcalc":125,"primary_image_id":11},3102,"Paranatrolite","Monoclinic","Na\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>3\u003C\u002Fsub>Al\u003Csub>2\u003C\u002Fsub>)O\u003Csub>10\u003C\u002Fsub> · 3H\u003Csub>2\u003C\u002Fsub>O","Na\u003Csub>2\u003C\u002Fsub>Al\u003Csub>2\u003C\u002Fsub>Si\u003Csub>3\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>·3H\u003Csub>2\u003C\u002Fsub>O","2.21","2.20",{"id":127,"name":128,"entrytype":9,"csystem":121,"ima_formula":129,"mindat_formula":130,"hmin":45,"hmax":51,"dmeas":54,"dcalc":131,"primary_image_id":132},3594,"Scolecite","Ca(Si\u003Csub>3\u003C\u002Fsub>Al\u003Csub>2\u003C\u002Fsub>)O\u003Csub>10\u003C\u002Fsub> · 3H\u003Csub>2\u003C\u002Fsub>O","CaAl\u003Csub>2\u003C\u002Fsub>Si\u003Csub>3\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>·3H\u003Csub>2\u003C\u002Fsub>O","2.275",21900,[134,143,151,160,169,177,184,194],{"id":135,"name":136,"entrytype":9,"csystem":121,"ima_formula":137,"mindat_formula":138,"hmin":139,"hmax":139,"dmeas":140,"dcalc":141,"primary_image_id":142},199,"Amicite","K\u003Csub>2\u003C\u002Fsub>Na\u003Csub>2\u003C\u002Fsub>(Al\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>16\u003C\u002Fsub>) · 5H\u003Csub>2\u003C\u002Fsub>O","K\u003Csub>2\u003C\u002Fsub>Na\u003Csub>2\u003C\u002Fsub>Al\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>16\u003C\u002Fsub>·5H\u003Csub>2\u003C\u002Fsub>O",4.5,"2.06","2.16",1119,{"id":144,"name":145,"entrytype":9,"csystem":146,"ima_formula":147,"mindat_formula":147,"hmin":45,"hmax":45,"dmeas":148,"dcalc":149,"primary_image_id":150},618,"Belovite-(Ce)","Trigonal","NaCeSr\u003Csub>3\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>F","4.19","4.13",3012,{"id":152,"name":153,"entrytype":9,"csystem":154,"ima_formula":155,"mindat_formula":156,"hmin":45,"hmax":38,"dmeas":157,"dcalc":158,"primary_image_id":159},880,"Cancrinite","Hexagonal","(Na,Ca,◻)\u003Csub>8\u003C\u002Fsub>(Al\u003Csub>6\u003C\u002Fsub>Si\u003Csub>6\u003C\u002Fsub>)O\u003Csub>24\u003C\u002Fsub>(CO\u003Csub>3\u003C\u002Fsub>,SO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O","(Na,Ca,◻)\u003Csub>8\u003C\u002Fsub>(Al\u003Csub>6\u003C\u002Fsub>Si\u003Csub>6\u003C\u002Fsub>O\u003Csub>24\u003C\u002Fsub>)(CO\u003Csub>3\u003C\u002Fsub>,SO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","2.42","2.49",4530,{"id":161,"name":162,"entrytype":9,"csystem":121,"ima_formula":163,"mindat_formula":164,"hmin":165,"hmax":165,"dmeas":166,"dcalc":167,"primary_image_id":168},1002,"Chiavennite","CaMn\u003Csup>2+\u003C\u002Fsup>(BeOH)\u003Csub>2\u003C\u002Fsub>Si\u003Csub>5\u003C\u002Fsub>O\u003Csub>13\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O","CaMnBe\u003Csub>2\u003C\u002Fsub>Si\u003Csub>5\u003C\u002Fsub>O\u003Csub>13\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O",3,"2.64","2.657",5388,{"id":170,"name":171,"entrytype":9,"csystem":172,"ima_formula":173,"mindat_formula":173,"hmin":51,"hmax":38,"dmeas":174,"dcalc":175,"primary_image_id":176},2465,"Leucite","Tetragonal","K(AlSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>)","2.45","2.46",30089,{"id":178,"name":179,"entrytype":9,"csystem":37,"ima_formula":180,"mindat_formula":180,"hmin":108,"hmax":108,"dmeas":181,"dcalc":182,"primary_image_id":183},2383,"Leucophanite","NaCaBeSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>F","2.96","2.961",14418,{"id":185,"name":186,"entrytype":9,"csystem":187,"ima_formula":188,"mindat_formula":189,"hmin":190,"hmax":165,"dmeas":191,"dcalc":192,"primary_image_id":193},2813,"Murmanite","Triclinic","Na\u003Csub>2\u003C\u002Fsub>Ti\u003Csub>2\u003C\u002Fsub>Na\u003Csub>2\u003C\u002Fsub>Ti\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>4\u003C\u002Fsub>","Na\u003Csub>2\u003C\u002Fsub>Ti\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)O\u003Csub>2\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O",2.5,"2.76","3.00",30239,{"id":195,"name":196,"entrytype":9,"csystem":146,"ima_formula":197,"mindat_formula":198,"hmin":199,"hmax":139,"dmeas":200,"dcalc":201,"primary_image_id":202},3396,"Reyerite","Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>14\u003C\u002Fsub>Al\u003Csub>2\u003C\u002Fsub>Si\u003Csub>22\u003C\u002Fsub>O\u003Csub>58\u003C\u002Fsub>(OH)\u003Csub>8\u003C\u002Fsub> · 6H\u003Csub>2\u003C\u002Fsub>O","(Na,K)\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>14\u003C\u002Fsub>(Si,Al)\u003Csub>24\u003C\u002Fsub>O\u003Csub>58\u003C\u002Fsub>(OH)\u003Csub>8\u003C\u002Fsub>·6H\u003Csub>2\u003C\u002Fsub>O",3.5,"2.51","2.59",20768,[],[205],{"id":206,"txt":207,"latitude":208,"longitude":209,"country":210},34116,"Hohentwiel, Singen, Konstanz, Freiburg Region, Baden-Württemberg, Germany",47.7655556,8.8194444,"Germany",1245,[213,217,221,226,230,234,239,244,247,252,256,260,265,268,272,277,281,284,288,293,298,302,307,311,315,320,325],{"id":214,"year":215,"html":216,"doi":11},16772127,1810,"Klaproth, M. H. (1810) CLXXIX. Chemische Untersuchung des Natroliths. In \u003Ci>Beiträge zur chemischen Kenntniss der Mineralkörper\u003C\u002Fi> Vol. 5. Rottmann. p.44-49.",{"id":218,"year":219,"html":220,"doi":11},16954064,1916,"Phillips, Alexander H. (1916) Some new forms of natrolite. \u003Ci>American Journal Of Science\u003C\u002Fi>,  S. 4 Vol. 42. 472-474 \u003Ca target='_blank' href='https:\u002F\u002Fwww.biodiversitylibrary.org\u002Fitempdf\u002F124987' class='refpdflink'>\u003C\u002Fa>",{"id":222,"year":223,"html":224,"doi":225},7150,1932,"Hey, Max H. (1932) Studies on the zeolites. Part III. Natrolite and metanatrolite. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  23 (139) 243-289 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1932.023.139.04'>doi:10.1180\u002Fminmag.1932.023.139.04\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_23\u002F23-139-243.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1932.023.139.04",{"id":227,"year":228,"html":229,"doi":11},521269,1942,"Murdoch, Joseph (1942) Crystallographic notes: cristobalite, stephanite, natrolite. \u003Ci>American Mineralogist\u003C\u002Fi>,  27 (7) 500-506 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM27\u002FAM27_500.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":231,"year":232,"html":233,"doi":11},522689,1955,"Peng, C. J. (1955) Thermal analysis study of the natrolite group. \u003Ci>American Mineralogist\u003C\u002Fi>,  40 (9-10) 834-856 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM40\u002FAM40_834.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":235,"year":236,"html":237,"doi":238},106438,1960,"Meier, W. M. (1960) The crystal structure of natrolite. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  113 (1). 430-444 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1960.113.1-6.430'>doi:10.1524\u002Fzkri.1960.113.1-6.430\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fzk\u002Fvol113\u002FZK113_430.pdf' class='refpdflink'>\u003C\u002Fa>","10.1524\u002Fzkri.1960.113.1-6.430",{"id":240,"year":241,"html":242,"doi":243},572611,1965,"Foster, M.D. (1965) Composition of zeolites of the natrolite group; compositional relations among thomsonites, gonnardites and natrolites. \u003Ci>Professional Paper\u003C\u002Fi> 504de. US Geological Survey \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3133\u002Fpp504de'>doi:10.3133\u002Fpp504de\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fpubs.usgs.gov\u002Fpp\u002F0504d-e\u002Freport.pdf' class='refpdflink'>\u003C\u002Fa>","10.3133\u002Fpp504de",{"id":245,"year":241,"html":246,"doi":11},16118804,"Foster, M.D. (1965) Composition of the zeolites of the natrolite group: USGS PP 504D: 1-7.",{"id":248,"year":249,"html":250,"doi":251},4954788,1969,"Joshi, M. S., Ittyachen, M. A. (1969) Etching of Natrolite Cleavages. \u003Ci>Journal of Applied Physics\u003C\u002Fi>, 40 (1). 421-423 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1063\u002F1.1657075'>doi:10.1063\u002F1.1657075\u003C\u002Fa>","10.1063\u002F1.1657075",{"id":253,"year":254,"html":255,"doi":11},525594,1971,"Pabst, A. (1971) Natrolite from the Green River Formation, Colorado, showing an intergrowth akin to twinning. \u003Ci>American Mineralogist\u003C\u002Fi>,  56 (3-4) 560-569 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM56\u002FAM56_560.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":257,"year":258,"html":259,"doi":11},16116868,1982,"Alberti, A., Pongiluppi, D., Vezzalini, G. (1982) The crystal chemistry of natrolite, mesolite and scolecite. Neues Jahrbuch für Mineralogie, Abhandlungen: 143: 231-248.",{"id":261,"year":262,"html":263,"doi":264},110384,1983,"Pechar, F., Schäfer, W., Will, G. (1983) A neutron diffraction refinement of the crystal structure of natural natrolite, Na2Al2Si3O10 · 2H2O. \u003Ci>Zeitschrift für Kristallographie - Crystalline Materials\u003C\u002Fi>,  164 (1-2) 19 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1983.164.1-2.19'>doi:10.1524\u002Fzkri.1983.164.1-2.19\u003C\u002Fa>","10.1524\u002Fzkri.1983.164.1-2.19",{"id":266,"year":262,"html":267,"doi":11},527841,"Johnson, G. K., Flotow, H. E., O'Hare, P. A. G., Wise, W. S. (1983) Thermodynamic studies of zeolites: natrolite, mesolite and scolecite. \u003Ci>American Mineralogist\u003C\u002Fi>,  68 (11-12) 1134-1145 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM68\u002FAM68_1134.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":269,"year":270,"html":271,"doi":11},528469,1988,"Akizuki, Mizuhiko, Harada, Kazuo (1988) Symmetry, twinning, and parallel growth of scolecite, mesolite, and natrolite. \u003Ci>American Mineralogist\u003C\u002Fi>,  73 (5-6) 613-618 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM73\u002FAM73_613.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":273,"year":274,"html":275,"doi":276},126797,1990,"Baur, Werner H., Kassner, Dethard, Kim, Choon-Hee, Sieber, Norbert H. W. (1990) Flexibility and distortion of the framework of natrolite: crystal structures of ion-exchanged natrolites. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  2 (6) 761-770 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002Fejm\u002F2\u002F6\u002F0761'>doi:10.1127\u002Fejm\u002F2\u002F6\u002F0761\u003C\u002Fa>","10.1127\u002Fejm\u002F2\u002F6\u002F0761",{"id":278,"year":279,"html":280,"doi":11},529306,1992,"Ross, Malcolm, Flohr, Marta J. K., Ross, Daphne R. (1992) Crystalline solution series and order-disorder within the natrolite mineral group. \u003Ci>American Mineralogist\u003C\u002Fi>,  77 (7-8) 685-703 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM77\u002FAM77_685.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":282,"year":279,"html":283,"doi":11},1118707,"Tschernich, Rudy W. (1992) \u003Ci>Zeolites of the World\u003C\u002Fi>. Geoscience Press, Inc. 567pp.",{"id":285,"year":279,"html":286,"doi":287},152010,"Belitsky, I. A., Fursenko, B. A., Gabuda, S. P., Kholdeev, O. V., Seryotkin, Yu. V. (1992) Structural transformations in natrolite and edingtonite. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  18 (8) 497-505 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf00205264'>doi:10.1007\u002Fbf00205264\u003C\u002Fa>","10.1007\u002Fbf00205264",{"id":289,"year":290,"html":291,"doi":292},16578611,1993,"Gunter, Mickey E., Ribbe, Paul H. (1993) Natrolite group zeolites: Correlations of optical properties and crystal chemistry. \u003Ci>Zeolites\u003C\u002Fi>,  13 (6) 435-440 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0144-2449(93)90117-l'>doi:10.1016\u002F0144-2449(93)90117-l\u003C\u002Fa>","10.1016\u002F0144-2449(93)90117-l",{"id":294,"year":295,"html":296,"doi":297},127297,1995,"Alberti, Alberto, Cruciani, Giuseppe, Dauru’, Ilaria (1995) Order-disorder in natrolite-group minerals. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  7 (3) 501-508 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002Fejm\u002F7\u002F3\u002F0501'>doi:10.1127\u002Fejm\u002F7\u002F3\u002F0501\u003C\u002Fa>","10.1127\u002Fejm\u002F7\u002F3\u002F0501",{"id":299,"year":300,"html":301,"doi":11},16117720,1997,"Coombs, Douglas S., Alberti, Alberto, Armbruster, Thomas, Artioli, Gilberto, Colella, Carmine, Galli, Ermanno, Grice, Joel D., Liebau, Friedrich, Mandarino, Joseph A., Minato, Hideo, et al. (1997) Recommended nomenclature for zeolite minerals; report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  35 (6). 1571-1606 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FCM35_1571.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":303,"year":304,"html":305,"doi":306},152721,2000,"Kirfel, A., Gibbs, G. V. (2000) Electron density distributions and bonded interactions for the fibrous zeolites natrolite, mesolite and scolecite and related materials. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  27 (4) 270-284 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs002690050256'>doi:10.1007\u002Fs002690050256\u003C\u002Fa>","10.1007\u002Fs002690050256",{"id":308,"year":309,"html":310,"doi":11},16966225,2001,"(2001) Natrolite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fnatrolite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":312,"year":313,"html":314,"doi":11},16118809,2002,"Lee, Y., Vogt, T., Hriljac, J.A., Parise, J.B., Artioli, G. (2002) Pressure-induced volume expansion of zeolites in the natrolite family: Journal of the American Chemical Society: 124: 5466-5475.",{"id":316,"year":317,"html":318,"doi":319},15072742,2005,"Kol’tsova, T. N. (2005) Zeolites of the natrolite-thomsonite series. \u003Ci>Inorganic Materials\u003C\u002Fi>,  41 (7) 750-756 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs10789-005-0203-0'>doi:10.1007\u002Fs10789-005-0203-0\u003C\u002Fa>","10.1007\u002Fs10789-005-0203-0",{"id":321,"year":322,"html":323,"doi":324},395574,2006,"Kolesov, B.A. (2006) Behavior of H2O molecules in the channels of natrolite and scolecite: A Raman and IR spectroscopic investigation of hydrous microporous silicates. \u003Ci>American Mineralogist\u003C\u002Fi>,  91 (7) 1039-1048 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2006.2049'>doi:10.2138\u002Fam.2006.2049\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fam\u002Fvol91\u002FAM91_1039.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam.2006.2049",{"id":326,"year":327,"html":328,"doi":329},396433,2010,"Lee, Y., Lee, Y., Seoung, D. (2010) Natrolite may not be a \"soda-stone\" anymore: Structural study of fully K-, Rb-, and Cs-exchanged natrolite. \u003Ci>American Mineralogist\u003C\u002Fi>,  95 (11) 1636-1641 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2010.3607'>doi:10.2138\u002Fam.2010.3607\u003C\u002Fa>","10.2138\u002Fam.2010.3607",[331,338,348,353,362,372,381,391,398,407,415,420,427,434,441,450,460,467,475,481,488,495,503,511,518,524,530,539,548,555,565,573,581,587,594,602,609,616,624,633,639,648,656,664,672,678,686,693,700,706,713,719,725,731,737,744,752,758,764,769,775,783,788,797,803,811,819,825,831,837,842,847,854,860,866,871,877,883,889,897,903,909,916,922,927,933,941,948,954,959,968,975,982],{"id":332,"source_url":333,"license_code":334,"credit_html":335,"title":7,"description":11,"author":11,"original_width":336,"original_height":337},30321,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F128766","CC BY-SA 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F128766\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",1000,845,{"id":339,"source_url":340,"license_code":341,"credit_html":342,"title":343,"description":344,"author":345,"original_width":346,"original_height":347},70132,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1182108","CC BY-SA 3.0","No machine-readable author provided. Kluka assumed (based on copyright claims)., via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1182108\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natrolit, Gracza 2Polska.jpg","natrolit, pochodzenie Polska, Gracza; autor zdjęcia Dagmara Lesiów; 20.o8.2006r","No machine-readable author provided. Kluka assumed (based on copyright claims).",463,522,{"id":349,"source_url":350,"license_code":334,"credit_html":351,"title":7,"description":11,"author":11,"original_width":336,"original_height":352},30322,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F128865","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F128865\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",705,{"id":354,"source_url":355,"license_code":341,"credit_html":356,"title":357,"description":358,"author":359,"original_width":360,"original_height":361},70133,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=7274425","Ra'ike (see also: de:Benutzer:Ra'ike), via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=7274425\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natrolith.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>","Ra'ike (see also: de:Benutzer:Ra'ike)",1600,1100,{"id":363,"source_url":364,"license_code":365,"credit_html":366,"title":367,"description":368,"author":369,"original_width":370,"original_height":371},17430,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=139879121","CC0 1.0","Natural History Museum of Gagliole, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=139879121\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Museo storia naturale Gagliole - Natrolite.jpg","Museo di storia naturale di Gagliole. Un esemplare del minerale di natrolite.","Natural History Museum of Gagliole",2420,1614,{"id":373,"source_url":374,"license_code":341,"credit_html":375,"title":376,"description":377,"author":378,"original_width":379,"original_height":380},70134,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10147149","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10147149\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natrolite-158744.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: San Agustin del Valle Fertil, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Juan\" class=\"extiw\" title=\"en:San Juan\">San Juan\u003C\u002Fa>, Argentina (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-69154.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 17.8 x 10.9 x 6.8 cm.\u003C\u002Fdd>\n\u003Cdd>Almost all of the natrolites you see these days are from India, but this is actually an ARGENTINE one - a large plate with a rich band running across the middle of transparent crystals to about 1.5 cm. From a small private collection of long-collected Argentine minerals built up by a US expatriate down there.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",400,340,{"id":382,"source_url":383,"license_code":384,"credit_html":385,"title":386,"description":387,"author":388,"original_width":389,"original_height":390},17431,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=167220355","CC BY 4.0","Animalculum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=167220355\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natrolite, Musee de Mineralogie, Paris, 2025.jpg","Natrolite from Czechia in Musee de Mineralogie, Paris","Animalculum",2834,3779,{"id":392,"source_url":393,"license_code":341,"credit_html":394,"title":395,"description":396,"author":378,"original_width":379,"original_height":397},70135,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148980","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148980\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natrolite-167783.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRio_Negro\" class=\"extiw\" title=\"en:Rio Negro\">Río Negro\u003C\u002Fa>, Argentina (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-29006.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.9 x 4.5 x 3.6 cm, 7.7 x 4.8 x 2.8 cm, 5.4 x 4.7 x 3.5 cm.\u003C\u002Fdd>\n\u003Cdd>More Argentine rarities from Dave Stoudt's travels through Argentina: 3 nodules containing delicate peach-colored puffballs of natrolite.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",388,{"id":399,"source_url":400,"license_code":341,"credit_html":401,"title":402,"description":403,"author":404,"original_width":405,"original_height":406},70137,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14867196","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14867196\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natrolite-254587.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Basalt quarry, Lautzenbrücken, Bad Marienberg, Westerwald, Rhineland-Palatinate, Germany\u003C\u002Fdd>\n\u003Cdd>Field of view 4cm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",885,636,{"id":408,"source_url":409,"license_code":334,"credit_html":410,"title":411,"description":412,"author":413,"original_width":414,"original_height":414},70138,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65518672","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65518672\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natrolith-1585.jpg","\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Dimensions: 6 cm × 6 cm × 3 cm; Diameter of the druse about 2,8 cm\u003C\u002Fdd>\n\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMaroldsweisach\" class=\"extiw\" title=\"en:Maroldsweisach\">Maroldsweisach\u003C\u002Fa>, Haßberge district, Bavaria, Germany\u003C\u002Fdd>\n\u003Cdd>Description: Druse with needle-like natrolite crystals in a basaltic matrix from the collection of \u003Ca href=\"https:\u002F\u002Fde.wikipedia.org\u002Fwiki\u002FBenutzerin:Ra%27ike\" class=\"extiw\" title=\"de:Benutzerin:Ra'ike\">Ra'ike\u003C\u002Fa>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Raimond Spekking",3929,{"id":416,"source_url":417,"license_code":334,"credit_html":418,"title":419,"description":412,"author":413,"original_width":390,"original_height":390},70139,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65518677","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65518677\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natrolith-1587.jpg",{"id":421,"source_url":422,"license_code":334,"credit_html":423,"title":424,"description":412,"author":413,"original_width":425,"original_height":426},70140,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65518689","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65518689\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natrolith-1588.jpg",6720,3780,{"id":428,"source_url":429,"license_code":334,"credit_html":430,"title":431,"description":412,"author":413,"original_width":432,"original_height":433},70141,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65518710","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65518710\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natrolith-1590.jpg",5609,4207,{"id":435,"source_url":436,"license_code":334,"credit_html":437,"title":438,"description":412,"author":413,"original_width":439,"original_height":440},70142,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65518728","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65518728\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natrolith-1591.jpg",5349,3009,{"id":442,"source_url":443,"license_code":334,"credit_html":444,"title":445,"description":446,"author":447,"original_width":448,"original_height":449},15950,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9054480","Didier Descouens, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9054480\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natroliteinde1.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality : Nasik District, \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FMaharashtra\" class=\"mw-redirect\" title=\"Maharashtra\">Maharashtra\u003C\u002Fa>, \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FIndia\" title=\"India\">India\u003C\u002Fa>\u003C\u002Fdd>\n\u003Cdd>Size : (11x9x7cm)\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Didier Descouens",3391,2644,{"id":451,"source_url":452,"license_code":453,"credit_html":454,"title":455,"description":456,"author":457,"original_width":458,"original_height":459},12633,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701372","Public domain","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701372\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, joaquinite-(Ce), natrolite 1.jpg","benitoite, joaquinite-(Ce), natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA","Géry PARENT",4288,2848,{"id":461,"source_url":462,"license_code":453,"credit_html":463,"title":464,"description":465,"author":466,"original_width":458,"original_height":459},17428,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11722983","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11722983\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Neptunite sur natrolite et serpentine (USA).jpg","Cristaux de neptunite, dont la couleur est rouge-foncée et non noire, sur natrolite et serpentine","Parent Géry",{"id":468,"source_url":469,"license_code":341,"credit_html":470,"title":471,"description":472,"author":378,"original_width":473,"original_height":474},3036,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10121850","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10121850\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-Natrolite-23815.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Five fine, sharp benitoite crystals, nicely balanced on the matrix, some of them partly gemmy. The largest measure 1.5 cm. 5 x 3.7 x 1.5 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",500,375,{"id":476,"source_url":477,"license_code":341,"credit_html":478,"title":479,"description":480,"author":466,"original_width":458,"original_height":459},12634,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13585696","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13585696\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, joaquinite-(Ce), neptunite, natrolite.jpg","benitoite,  joaquinite-(Ce), neptunite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":482,"source_url":483,"license_code":453,"credit_html":484,"title":485,"description":486,"author":457,"original_width":487,"original_height":459},17429,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11723098","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11723098\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Neptunite, benitoite, natrolite.jpg","neptunite, benitoite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",4187,{"id":489,"source_url":490,"license_code":341,"credit_html":491,"title":492,"description":493,"author":457,"original_width":494,"original_height":459},261,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=31173599","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=31173599\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Sérandite, natrolite, analcime, aegirine 300-4-2112.JPG","analcime, serandite, aegirine, natrolite, rhodochrosite : Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada -  (serandite:red\u002Foranged, analcime:white, natrolite:grey, aegirine:black, rhodochrosite:brown)",3916,{"id":496,"source_url":497,"license_code":341,"credit_html":498,"title":499,"description":500,"author":378,"original_width":501,"original_height":502},35414,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10144715","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10144715\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-Neptunite-Natrolite-144991.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNeptunite\" class=\"extiw\" title=\"en:Neptunite\">Neptunite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 10.3 x 6.6 x 3.0 cm.\u003C\u002Fdd>\n\u003Cdd>An AESTHETIC and EXCELLENT Dallas Gem Mine CABINET plate with partially gemmy, light indigo-blue benitoite crystals to 1.5 cm RICHLY sprinkled on natrollite-covered matrix. Scattered black neptunite crystals to 7 mm are a nice compliment. This is FINE, older material, HARD to obtain now with the closing of the mine.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",600,424,{"id":504,"source_url":505,"license_code":341,"credit_html":506,"title":507,"description":508,"author":378,"original_width":509,"original_height":510},36643,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150781","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150781\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Inesite-Apophyllite-Natrolite-174177.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FInesite\" class=\"extiw\" title=\"en:Inesite\">Inesite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FApophyllite\" class=\"extiw\" title=\"en:Apophyllite\">Apophyllite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNorthern_Cape\" class=\"extiw\" title=\"en:Northern Cape\">Northern Cape Province\u003C\u002Fa>, South Africa (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3071.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.1 x 3.3 x 3.1 cm.\u003C\u002Fdd>\n\u003Cdd>This fine cluster especially shows off inesite in pink, diverging, acicular, crystal groups and two, gemmy, colorless tablets of apophyllite. Ex. Willy Israel Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",567,632,{"id":512,"source_url":513,"license_code":341,"credit_html":514,"title":515,"description":516,"author":378,"original_width":501,"original_height":517},66003,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154604","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154604\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Neptunite-Natrolite-187707.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNeptunite\" class=\"extiw\" title=\"en:Neptunite\">Neptunite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.3 x 5.7 x 2.4 cm.\u003C\u002Fdd>\n\u003Cdd>Lustrous, jet-black neptunite crystals are richly and aesthetically strewn on contrasting snow-white natrolite and matrix on this fine specimen from the Dallas Gem Mine. The neptunites reach 1.6 cm.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",577,{"id":519,"source_url":520,"license_code":453,"credit_html":521,"title":522,"description":523,"author":466,"original_width":458,"original_height":459},35423,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701581","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701581\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte, neptunite, joaquinite-(Ce) sur natrolite et serpentine (USA) 2.jpg","benitoïte, neptunite, joaquinite-(Ce), natrolite, serpentine : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org",{"id":525,"source_url":526,"license_code":341,"credit_html":527,"title":528,"description":529,"author":466,"original_width":458,"original_height":459},61662,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=16134211","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=16134211\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), neptunite et natrolite (USA).JPG","crystals of joaquinite-(Ce), crystals of neptunite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":531,"source_url":532,"license_code":453,"credit_html":533,"title":534,"description":535,"author":536,"original_width":537,"original_height":538},27280,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=34653495","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=34653495\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Makatite, Zakharovite, Natrolite-255464.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMakatite\" class=\"extiw\" title=\"en:Makatite\">Makatite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FZakharovite\" class=\"extiw\" title=\"en:Zakharovite\">Zakharovite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>Size ~ 1.7 x 3 cm. Found Sept 2000. MOB coll.\u003C\u002Fdd>\n\u003Cdd>The faintly greenish radiating makatite was associated with (relatively!) abundant varennesite. But on this specimen the orange\u002Fbrown areas are zakharovite, not varennesite. The dark areas in the makatite are terminations of stubby natrolite xls. In other specimens from this find a few dark \"sea green\" blades of makatite are embedded in the paler material.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Modris Baum",693,1024,{"id":540,"source_url":541,"license_code":334,"credit_html":542,"title":543,"description":544,"author":545,"original_width":546,"original_height":547},3087,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=66681722","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=66681722\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Berborite & Natrolite.jpg","Outstanding beige sharp perfect crystals of the very rare mineral berborite in a matrix of natrolite. From: Saga 1 Quarry, Porsgrunn, Telemark, Norway.","David Hospital",714,667,{"id":549,"source_url":550,"license_code":341,"credit_html":551,"title":552,"description":553,"author":466,"original_width":554,"original_height":459},1330,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17545679","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17545679\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Nenadkevichite, rhodocrosite, aegirine, natrolite, épidimyte, ancylite-(Ce) (Mont Saint-Hilaire, Québec - Canada).JPG","nenadkevichite, rhodochrosite, aegirine, natrolite, epidimyte, ancylite-(Ce) : Poudrette quarry (Demix quarry ; Uni-Mix quarry ; Desourdy quarry ; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada",3931,{"id":556,"source_url":557,"license_code":558,"credit_html":559,"title":560,"description":561,"author":562,"original_width":563,"original_height":564},2663,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=83657474","CC BY 2.0","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=83657474\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-joaquinite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 2 (25400412690).jpg","\u003Cp>Benitoite crystals from California, USA. (public display, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA)\n\u003C\u002Fp>\u003Cp>Blue = benitoite\nWhite = natrolite\nSmall black sticks = neptunite\n\u003C\u002Fp>\u003Cp>The bluish-colored crystals shown above are benitoite, a very rare barium titanium silicate mineral (BaTiSi3O9) known principally from San Benito County, California, USA.  Large, gem-quality crystals that have been cut, faceted, and polished have the “fire” of diamond (~same index of refraction), but have a lovely deep blue color (<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\">http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\u003C\u002Fa>\" rel=\"noreferrer nofollow\">www.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Ben...<\u002Fa>).  Benitoite is a metamorphic mineral.  Its principal occurrence is in California, where polymineralic veins have intruded a blueschist body between serpentinites and greenstones of the Franciscan Formation.  The Franciscan Fm. is a widespread, heterolithic unit of Jurassic-Cretaceous age in the Coast Ranges of western California.  The vein mineralization age is late Middle Miocene (12 m.y.).\n\u003C\u002Fp>\u003Cp>Four minerals are commonly found in these veins: benitoite (blue), neptunite (blackish - Na2KLi(Fe,Mn)2Ti2Si8O24), natrolite (white - Na2Al2Si3O10·2H2O), and joaquinite (orangish-brown - Ba2NaCe2FeTi2Si8O26(OH,F)·H2O).  The natrolite portion is acid-soluble.  Nicely crystalline rock faces like the one shown above are produced by acid etching the natrolite-dominated veins.  After acid treatment, the other minerals stand out in relief.\n\u003C\u002Fp>\u003Cp>Stratigraphy of blueschist host rock: Franciscan Complex, Jurassic-Cretaceous\n\u003C\u002Fp>\u003Cp>Age of benitoite-bearing vein mineralization: Middle Miocene, 12 Ma\n\u003C\u002Fp>\nLocality: Dallas Gem Mine (a.k.a. Benitoite Gem Mine), near Santa Rita peak, southeast of New Idria, far-southeastern San Benito County, California, USA (~36° 20’ 10” North latitude, ~120° 36’ 19” West longitude)","James St. John",4100,2404,{"id":566,"source_url":567,"license_code":558,"credit_html":568,"title":569,"description":570,"author":562,"original_width":571,"original_height":572},2664,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=83657773","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=83657773\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 2 (32832839407).jpg","\u003Cp>Benitoite crystals from California, USA.\n\u003C\u002Fp>\u003Cp>Blue = benitoite\nWhite = natrolite\nBlack sticks = neptunite\nHost rock = blueschist\n\u003C\u002Fp>\u003Cp>The bluish-colored crystals shown above are benitoite, a very rare barium titanium silicate mineral (BaTiSi3O9) known principally from San Benito County, California, USA.  Large, gem-quality crystals that have been cut, faceted, and polished have the “fire” of diamond (~same index of refraction), but have a lovely deep blue color (<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\">http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\u003C\u002Fa>\" rel=\"noreferrer nofollow\">www.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Ben...<\u002Fa>).  Benitoite is a metamorphic mineral.  Its principal occurrence is in California, where polymineralic veins have intruded a blueschist body between serpentinites and greenstones of the Franciscan Formation.  The Franciscan Fm. is a widespread, heterolithic unit of Jurassic-Cretaceous age in the Coast Ranges of western California.  The vein mineralization age is late Middle Miocene (12 Ma).\n\u003C\u002Fp>\u003Cp>Four minerals are commonly found in these veins: benitoite (blue), neptunite (blackish - Na2KLi(Fe,Mn)2Ti2Si8O24), natrolite (white - Na2Al2Si3O10·2H2O), and joaquinite (orangish-brown - Ba2NaCe2FeTi2Si8O26(OH,F)·H2O).  The natrolite portion is acid-soluble.  Nicely crystalline rock faces like the one shown above are produced by acid etching the natrolite-dominated veins.  After acid treatment, the other minerals stand out in relief.\n\u003C\u002Fp>\u003Cp>Stratigraphy of blueschist host rock: Franciscan Complex, Jurassic-Cretaceous\n\u003C\u002Fp>\u003Cp>Age of benitoite-bearing vein mineralization: Middle Miocene, 12 Ma\n\u003C\u002Fp>\nLocality: Dallas Gem Mine (a.k.a. Benitoite Gem Mine), near Santa Rita peak, southeast of New Idria, far-southeastern San Benito County, California, USA (~36° 20’ 10” North latitude, ~120° 36’ 19” West longitude)",2482,3278,{"id":574,"source_url":575,"license_code":558,"credit_html":576,"title":577,"description":578,"author":562,"original_width":579,"original_height":580},2665,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500656","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500656\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 4 (49144209306).jpg","\u003Cp>(public display, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA)\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Blue = benitoite\nWhite = natrolite\nBlack = neptunite\nHost rock = blueschist\n\u003C\u002Fp>\u003Cp>The bluish-colored crystals shown above are benitoite, a very rare barium titanium silicate mineral (BaTiSi3O9) known principally from San Benito County, California, USA.  Large, gem-quality crystals that have been cut, faceted, and polished have the “fire” of diamond (~same index of refraction), but have a lovely deep blue color (<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\">http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\u003C\u002Fa>\" rel=\"noreferrer nofollow\">www.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Ben...<\u002Fa>).  Benitoite is a metamorphic mineral.  Its principal occurrence is in California, where polymineralic veins have intruded a blueschist body between serpentinites and greenstones of the Franciscan Formation.  The Franciscan Fm. is a widespread, heterolithic unit of Jurassic-Cretaceous age in the Coast Ranges of western California.  The vein mineralization age is late Middle Miocene (12 Ma).\n\u003C\u002Fp>\u003Cp>Four minerals are commonly found in these veins: benitoite (blue), neptunite (blackish - Na2KLi(Fe,Mn)2Ti2Si8O24), natrolite (white - Na2Al2Si3O10·2H2O), and joaquinite (orangish-brown - Ba2NaCe2FeTi2Si8O26(OH,F)·H2O).  The natrolite portion is acid-soluble.  Nicely crystalline specimens like those seen here are produced by acid etching the natrolite-dominated veins.  After acid treatment, the other minerals stand out in relief.\n\u003C\u002Fp>\u003Cp>Stratigraphy of blueschist host rock: Franciscan Complex, Jurassic-Cretaceous\n\u003C\u002Fp>\u003Cp>Age of benitoite-bearing vein mineralization: Middle Miocene, 12 Ma\n\u003C\u002Fp>\nLocality: Dallas Gem Mine (a.k.a. Benitoite Gem Mine), near Santa Rita peak, southeast of New Idria, far-southeastern San Benito County, California, USA (~36° 20’ 10” North latitude, ~120° 36’ 19” West longitude)",3466,2284,{"id":582,"source_url":583,"license_code":558,"credit_html":584,"title":585,"description":586,"author":562,"original_width":564,"original_height":304},2666,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500664","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500664\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 8 (49143717068).jpg","\u003Cp>Blue = benitoite\nWhite = natrolite\nBlack = neptunite\nHost rock = blueschist\n\u003C\u002Fp>\u003Cp>The bluish-colored crystals shown above are benitoite, a very rare barium titanium silicate mineral (BaTiSi3O9) known principally from San Benito County, California, USA.  Large, gem-quality crystals that have been cut, faceted, and polished have the “fire” of diamond (~same index of refraction), but have a lovely deep blue color (<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"https:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\">https:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\u003C\u002Fa>\" rel=\"noreferrer nofollow\">www.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Ben...<\u002Fa>).  Benitoite is a metamorphic mineral.  Its principal occurrence is in California, where polymineralic veins have intruded a blueschist body between serpentinites and greenstones of the Franciscan Formation.  The Franciscan Fm. is a widespread, heterolithic unit of Jurassic-Cretaceous age in the Coast Ranges of western California.  The vein mineralization age is late Middle Miocene (12 Ma).\n\u003C\u002Fp>\u003Cp>Four minerals are commonly found in these veins: benitoite (blue), neptunite (blackish - Na2KLi(Fe,Mn)2Ti2Si8O24), natrolite (white - Na2Al2Si3O10·2H2O), and joaquinite (orangish-brown - Ba2NaCe2FeTi2Si8O26(OH,F)·H2O).  The natrolite portion is acid-soluble.  Nicely crystalline specimens like those seen here are produced by acid etching the natrolite-dominated veins.  After acid treatment, the other minerals stand out in relief.\n\u003C\u002Fp>\u003Cp>Stratigraphy of blueschist host rock: Franciscan Complex, Jurassic-Cretaceous\n\u003C\u002Fp>\u003Cp>Age of benitoite-bearing vein mineralization: Middle Miocene, 12 Ma\n\u003C\u002Fp>\nLocality: Dallas Gem Mine (a.k.a. Benitoite Gem Mine), near Santa Rita peak, southeast of New Idria, far-southeastern San Benito County, California, USA (~36° 20’ 10” North latitude, ~120° 36’ 19” West longitude)",{"id":588,"source_url":589,"license_code":558,"credit_html":590,"title":591,"description":592,"author":562,"original_width":593,"original_height":304},2667,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500666","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500666\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 9 (49143720718).jpg","\u003Cp>(public display, Leadville Mining Museum, Leadville, Colorado, USA)\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Bluish = benitoite\nWhite = natrolite\nBlack = neptunite\nHost rock = blueschist\n\u003C\u002Fp>\u003Cp>The bluish-colored crystals shown above are benitoite, a very rare barium titanium silicate mineral (BaTiSi3O9) known principally from San Benito County, California, USA.  Large, gem-quality crystals that have been cut, faceted, and polished have the “fire” of diamond (~same index of refraction), but have a lovely deep blue color (<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\">http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\u003C\u002Fa>\" rel=\"noreferrer nofollow\">www.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Ben...<\u002Fa>).  Benitoite is a metamorphic mineral.  Its principal occurrence is in California, where polymineralic veins have intruded a blueschist body between serpentinites and greenstones of the Franciscan Formation.  The Franciscan Fm. is a widespread, heterolithic unit of Jurassic-Cretaceous age in the Coast Ranges of western California.  The vein mineralization age is late Middle Miocene (12 Ma).\n\u003C\u002Fp>\u003Cp>Four minerals are commonly found in these veins: benitoite (blue), neptunite (blackish - Na2KLi(Fe,Mn)2Ti2Si8O24), natrolite (white - Na2Al2Si3O10·2H2O), and joaquinite (orangish-brown - Ba2NaCe2FeTi2Si8O26(OH,F)·H2O).  The natrolite portion is acid-soluble.  Nicely crystalline specimens like those seen here are produced by acid etching the natrolite-dominated veins.  After acid treatment, the other minerals stand out in relief.\n\u003C\u002Fp>\u003Cp>Stratigraphy of blueschist host rock: Franciscan Complex, Jurassic-Cretaceous\n\u003C\u002Fp>\u003Cp>Age of benitoite-bearing vein mineralization: Middle Miocene, 12 Ma\n\u003C\u002Fp>\nLocality: Dallas Gem Mine (a.k.a. Benitoite Gem Mine), near Santa Rita peak, southeast of New Idria, far-southeastern San Benito County, California, USA (~36° 20’ 10” North latitude, ~120° 36’ 19” West longitude)",3008,{"id":595,"source_url":596,"license_code":558,"credit_html":597,"title":598,"description":599,"author":562,"original_width":600,"original_height":601},2668,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500668","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500668\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 12 (49144418917).jpg","\u003Cp>(public display, Field Museum of Natural History, Chicago, Illinois, USA)\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Blue = benitoite\nWhite = natrolite\nBlack = neptunite\nHost rock = blueschist\n\u003C\u002Fp>\u003Cp>The bluish-colored crystals shown above are benitoite, a very rare barium titanium silicate mineral (BaTiSi3O9) known principally from San Benito County, California, USA.  Large, gem-quality crystals that have been cut, faceted, and polished have the “fire” of diamond (~same index of refraction), but have a lovely deep blue color (<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\">http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\u003C\u002Fa>\" rel=\"noreferrer nofollow\">www.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Ben...<\u002Fa>).  Benitoite is a metamorphic mineral.  Its principal occurrence is in California, where polymineralic veins have intruded a blueschist body between serpentinites and greenstones of the Franciscan Formation.  The Franciscan Fm. is a widespread, heterolithic unit of Jurassic-Cretaceous age in the Coast Ranges of western California.  The vein mineralization age is late Middle Miocene (12 Ma).\n\u003C\u002Fp>\u003Cp>Four minerals are commonly found in these veins: benitoite (blue), neptunite (blackish - Na2KLi(Fe,Mn)2Ti2Si8O24), natrolite (white - Na2Al2Si3O10·2H2O), and joaquinite (orangish-brown - Ba2NaCe2FeTi2Si8O26(OH,F)·H2O).  The natrolite portion is acid-soluble.  Nicely crystalline specimens like those seen here are produced by acid etching the natrolite-dominated veins.  After acid treatment, the other minerals stand out in relief.\n\u003C\u002Fp>\u003Cp>Stratigraphy of blueschist host rock: Franciscan Complex, Jurassic-Cretaceous\n\u003C\u002Fp>\u003Cp>Age of benitoite-bearing vein mineralization: Middle Miocene, 12 Ma\n\u003C\u002Fp>\nLocality: Dallas Gem Mine (a.k.a. Benitoite Gem Mine), near Santa Rita peak, southeast of New Idria, far-southeastern San Benito County, California, USA (~36° 20’ 10” North latitude, ~120° 36’ 19” West longitude)",1876,2373,{"id":603,"source_url":604,"license_code":558,"credit_html":605,"title":606,"description":599,"author":562,"original_width":607,"original_height":608},2669,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500669","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500669\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 11 (49144217586).jpg",2039,2472,{"id":610,"source_url":611,"license_code":558,"credit_html":612,"title":613,"description":599,"author":562,"original_width":614,"original_height":615},2670,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500670","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500670\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 13 (49143721538).jpg",1880,2356,{"id":617,"source_url":618,"license_code":453,"credit_html":619,"title":620,"description":621,"author":536,"original_width":622,"original_height":623},2965,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=94686508","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=94686508\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Behoite, Aegirine, Natrolite-261008.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBehoite\" class=\"extiw\" title=\"en:Behoite\">Behoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAegirine\" class=\"extiw\" title=\"en:Aegirine\">Aegirine\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Dimensions: 17 mm x 11 mm x 5 mm\u003C\u002Fdd>\n\u003Cdd>Locality: Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>Description: The reticulated behoite aggregate is ~ 11 mm tip to tip and ~ 7 mm high. Via Gilles H. The stubby white natrolite prisms may be, in part, gonnardite (not analyzed).The small heavily twinned glassy xls appear to be unaltered natrolite. I don't kn ow if these are two distinct generations of natrolite. The black prisms are aegirine. The red blebs (some mixed in with the behoite) are rhodochrosite. The behoite is sort of pale tan, but the rhodochrosite makes it look somewhat pink in this photo.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",3310,2278,{"id":625,"source_url":626,"license_code":453,"credit_html":627,"title":628,"description":629,"author":630,"original_width":631,"original_height":632},2966,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=94686745","Jerry Cone, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=94686745\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Behoite, Natrolite-525056.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBehoite\" class=\"extiw\" title=\"en:Behoite\">Behoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>Field of view: 4.3 mm\u003C\u002Fdd>\n\u003Cdd>Description: The spiky behoite is tucked away in a vug in the center of the picture. There are water clear natrolites surrounding it. They were collected on 5\u002F29\u002F1993.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Jerry Cone",5007,3338,{"id":634,"source_url":635,"license_code":453,"credit_html":636,"title":637,"description":638,"author":457,"original_width":458,"original_height":459},3034,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5543748","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5543748\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), benitoite, neptunite, natrolite 1.jpg","joaquinite-(Ce), benitoite, neptunite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)",{"id":640,"source_url":641,"license_code":453,"credit_html":642,"title":643,"description":644,"author":645,"original_width":646,"original_height":647},3039,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10592532","Stickpen, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10592532\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-neptunite-natrolite.jpg","Benitoite (blue) & neptunite (black) in natrolite (white) from San Benito County, California, USA. Photographed at the San Diego Natural History Museum, California, USA.","Stickpen",2279,2659,{"id":649,"source_url":650,"license_code":341,"credit_html":651,"title":652,"description":653,"author":378,"original_width":654,"original_height":655},4532,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10030115","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10030115\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Cancrinite-Natrolite-Rhodochrosite-20244.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCancrinite\" class=\"extiw\" title=\"en:Cancrinite\">Cancrinite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRhodochrosite\" class=\"extiw\" title=\"en:Rhodochrosite\">Rhodochrosite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont_Saint-Hilaire\" class=\"extiw\" title=\"en:Mont Saint-Hilaire\">Mont Saint-Hilaire\u003C\u002Fa>, Rouville RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont%C3%A9r%C3%A9gie\" class=\"extiw\" title=\"en:Montérégie\">Montérégie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-599.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A remarkable specimen consisting of a very finely crystallized natrolite crystal that has been completely replaced by Cancrinite. It has accents of Rhodochrosite, as well, for a bit of color! Complete all around with a fine termination on top. Ex Marcelle and Charles Weber Collection 4 x 2 x 1.75 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",531,720,{"id":657,"source_url":658,"license_code":453,"credit_html":659,"title":660,"description":661,"author":536,"original_width":662,"original_height":663},4848,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40272072","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40272072\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Catapleiite, Natrolite-168964.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCatapleiite\" class=\"extiw\" title=\"en:Catapleiite\">Catapleiite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>Catapleiite \"donuts\" to ~ 12 mm; natrolite 7-8 mm. Total height ~ 3.5 cm.\u003C\u002Fdd>\n\u003Cdd>Thanks to Jean-Yves Lamoureux for this specimen. Found Oct 1995. MOB coll.\u003C\u002Fdd>\n\u003Cdd>The rosettes are strongly frosted on the edges which gives them a grayish appearance from the sides.\u003C\u002Fdd>\n\u003Cdd>See \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FFile:Catapleiite,_Natrolite-168971.jpg\" title=\"File:Catapleiite, Natrolite-168971.jpg\">File:Catapleiite, Natrolite-168971.jpg\u003C\u002Fa> for a description of this find.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",529,768,{"id":665,"source_url":666,"license_code":453,"credit_html":667,"title":668,"description":669,"author":670,"original_width":671,"original_height":671},6487,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1956033","Dave Dyet http:\u002F\u002Fwww.shutterstone.com http:\u002F\u002Fwww.dyet.com, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1956033\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite with natrolite Complex Silicate near the Dallas Gem Mine, San Benito County, California 2397.jpg","These mineral images are free to use how you wish.","Dave Dyet http:\u002F\u002Fwww.shutterstone.com http:\u002F\u002Fwww.dyet.com",800,{"id":673,"source_url":674,"license_code":341,"credit_html":675,"title":676,"description":677,"author":457,"original_width":458,"original_height":459},6488,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=19987652","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=19987652\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, bénitoïte, neptunite, joaquinite-(Ce), natrolite, serpentine.JPG","crossite, djurleite, benitoite, neptunite, joaquinite-(Ce), natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)",{"id":679,"source_url":680,"license_code":334,"credit_html":681,"title":682,"description":683,"author":457,"original_width":684,"original_height":685},6490,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291427","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291427\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, neptunite, bénitoïte, natrolite 1100. FS2015.jpg","crossite, neptunite, benitoïte, natrolite : California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",1984,1622,{"id":687,"source_url":688,"license_code":334,"credit_html":689,"title":690,"description":683,"author":457,"original_width":691,"original_height":692},6491,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291428","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291428\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, neptunite, bénitoïte, natrolite 1100.FS2015.jpg",1975,1317,{"id":694,"source_url":695,"license_code":334,"credit_html":696,"title":697,"description":683,"author":457,"original_width":698,"original_height":699},6492,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291430","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291430\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, neptunite, bénitoïte, natrolite 7100.FS2015.jpg",1994,1329,{"id":701,"source_url":702,"license_code":334,"credit_html":703,"title":704,"description":683,"author":457,"original_width":295,"original_height":705},6493,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291431","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291431\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, neptunite, bénitoïte, natrolite FS2015.jpg",1439,{"id":707,"source_url":708,"license_code":334,"credit_html":709,"title":710,"description":683,"author":457,"original_width":711,"original_height":712},6494,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291434","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291434\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, neptunite, bénitoïte, natrolite FS2015 1.jpg",1981,1765,{"id":714,"source_url":715,"license_code":341,"credit_html":716,"title":717,"description":718,"author":466,"original_width":458,"original_height":459},7292,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13344302","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13344302\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, neptunite, joaquinite-(Ce), djurleite, natrolite, serpentine.jpg","benitoite, neptunite, joaquinite-(Ce), djurleite, natrolite, serpentine : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA - benitoïte : 15,5 mm, neptunite : 43 mm, joaquinite-(Ce) : 2 mm, djurleite : 4 mm",{"id":720,"source_url":721,"license_code":341,"credit_html":722,"title":723,"description":724,"author":466,"original_width":458,"original_height":459},7293,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13583820","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13583820\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, neptunite, joaquinite-(Ce), djurleite, natrolite.jpg","benitoite, neptunite, joaquinite-(Ce), djurleite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":726,"source_url":727,"license_code":341,"credit_html":728,"title":729,"description":730,"author":466,"original_width":458,"original_height":459},7294,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17017394","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17017394\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, neptunite, djurleite, natrolite.jpg","benitoite, neptunite, djurleite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":732,"source_url":733,"license_code":341,"credit_html":734,"title":735,"description":736,"author":466,"original_width":458,"original_height":459},7295,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137246","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137246\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, neptunite, joaquinite-(Ce) djurleite, natrolite.jpg","benitoite, neptunite, djurleite, joaquinite-(Ce), natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":738,"source_url":739,"license_code":453,"credit_html":740,"title":741,"description":742,"author":536,"original_width":743,"original_height":538},10209,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=27362296","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=27362296\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Genthelvite, Analcime, Aegirine, Natrolite-250349.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGenthelvite\" class=\"extiw\" title=\"en:Genthelvite\">Genthelvite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAnalcime\" class=\"extiw\" title=\"en:Analcime\">Analcime\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAegirine\" class=\"extiw\" title=\"en:Aegirine\">Aegirine\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAlbite\" class=\"extiw\" title=\"en:Albite\">Albite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>The genthelvite has a nice color but is stuck between two large analcime xls which make it difficult to get a good angle for a photo.\u003C\u002Fdd>\n\u003Cdd>The small white xls are natrolite with (probably) gonnardite exteriors. When the specimen was found, this stuff almost completely covered the genthelvite but has since crumbled away.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",857,{"id":745,"source_url":746,"license_code":341,"credit_html":747,"title":748,"description":749,"author":378,"original_width":750,"original_height":751},10711,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10030124","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10030124\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Haineaultite-Analcime-Natrolite-20250.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHaineaultite\" class=\"extiw\" title=\"en:Haineaultite\">Haineaultite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAnalcime\" class=\"extiw\" title=\"en:Analcime\">Analcime\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont_Saint-Hilaire\" class=\"extiw\" title=\"en:Mont Saint-Hilaire\">Mont Saint-Hilaire\u003C\u002Fa>, Rouville RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont%C3%A9r%C3%A9gie\" class=\"extiw\" title=\"en:Montérégie\">Montérégie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-599.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>This specimen would be considered a very rich example because of the eye-visible wealth of bright , gemmy yellow crystals present; and comes with a label from Gilles Haineault showing that he collected it in April of 2000. The crystals are not sparse at all and a whole seam of them is easily seen without needed visual aid. The piece has several very sharp crystals to 2mm. 3.5 x 2.9 x 2.1 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",700,659,{"id":753,"source_url":754,"license_code":453,"credit_html":755,"title":756,"description":757,"author":457,"original_width":458,"original_height":459},12631,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5543700","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5543700\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), benitoite, neptunite, natrolite 2.jpg","joaquinite-(Ce), benitoite, neptunite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":759,"source_url":760,"license_code":341,"credit_html":761,"title":762,"description":456,"author":466,"original_width":763,"original_height":459},12636,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17017261","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17017261\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, joaquinite-(Ce), natrolite.jpg",3925,{"id":765,"source_url":766,"license_code":453,"credit_html":767,"title":768,"description":757,"author":457,"original_width":458,"original_height":459},15342,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5543860","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5543860\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), benitoite, neptunite, natrolite 3.jpg",{"id":770,"source_url":771,"license_code":453,"credit_html":772,"title":773,"description":774,"author":457,"original_width":458,"original_height":459},17567,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701644","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701644\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite, benitoite, neptunite, djurleite, natrolite.jpg","joaquinite-(Ce), benitoite, neptunite, djurleite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":776,"source_url":777,"license_code":341,"credit_html":778,"title":779,"description":780,"author":447,"original_width":781,"original_height":782},23462,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6840450","Didier Descouens, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6840450\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natrolitereunion.jpg","\u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FNatrolite\" class=\"mw-redirect\" title=\"Natrolite\">Natrolite\u003C\u002Fa> with \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FPhillipsite\" class=\"mw-redirect\" title=\"Phillipsite\">Phillipsite\u003C\u002Fa> and \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FTacharanite\" class=\"mw-redirect\" title=\"Tacharanite\">Tacharanite\u003C\u002Fa> - Espalion \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FAveyron\" title=\"Aveyron\">Aveyron\u003C\u002Fa> \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FFrance\" title=\"France\">France\u003C\u002Fa> (9x8cm)",4592,3056,{"id":784,"source_url":785,"license_code":453,"credit_html":786,"title":787,"description":669,"author":670,"original_width":671,"original_height":671},32734,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1955882","Dave Dyet http:\u002F\u002Fwww.shutterstone.com http:\u002F\u002Fwww.dyet.com, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1955882\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Analcime in basalt w-natrolite Hydrous sodium aluminum silicate Ricardo Red Rock Canyon Kern Canyon California 2217.jpg",{"id":789,"source_url":790,"license_code":791,"credit_html":792,"title":793,"description":794,"author":795,"original_width":796,"original_height":538},32742,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15275638","CC BY 3.0","Carles Millan, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15275638\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Analcime, Aegirine, Natrolite-225835.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAnalcime\" class=\"extiw\" title=\"en:Analcime\">Analcime\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAegirine\" class=\"extiw\" title=\"en:Aegirine\">Aegirine\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> Colorless sharply formed undamaged crystals of analcime to 25 mm in diameter on a 78 mm x 65 mm x 53 mm matrix. They are associated with numerous black prismatic terminated crystals of aegirine, as well as smaller colorless prismatic terminated crystals of natrolite, these from 3 mm to 10 mm in length. Ex Joan Massagué collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Carles Millan",943,{"id":798,"source_url":799,"license_code":453,"credit_html":800,"title":801,"description":802,"author":11,"original_width":458,"original_height":459},35411,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5299918","Unknown author, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5299918\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte, neptunite, joaquinite-(Ce), natrolite 2 (USA).jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa> (blue), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJoaquinite-(Ce)\" class=\"extiw\" title=\"en:Joaquinite-(Ce)\">Joaquinite\u003C\u002Fa> (brown) and \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNeptunite\" class=\"extiw\" title=\"en:Neptunite\">Neptunite\u003C\u002Fa> (dark red) on \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa> (white) : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)",{"id":804,"source_url":805,"license_code":341,"credit_html":806,"title":807,"description":808,"author":378,"original_width":809,"original_height":810},35413,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141854","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141854\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-Natrolite-133461.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.7 x 3.9 x 2.8 cm.\u003C\u002Fdd>\n\u003Cdd>An EXCELLENT specimen of LARGE, to 2.1 cm, partially gemmy, indigo-blue benitoite crystals aesthetically sprinkled on natrolite-covered matrix. This is FINE, older material, HARD to obtain now with the closing of the mine. Ed Ruggiero purchased this showy, pristine piece from Jo Runner at the Denver Show in June, 1975.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",525,494,{"id":812,"source_url":813,"license_code":453,"credit_html":814,"title":815,"description":816,"author":466,"original_width":817,"original_height":818},35421,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701336","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701336\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte sur natrolite et serpentine (USA).jpg","I, the copyright holder of this work, hereby publish it under the following license:",3564,2377,{"id":820,"source_url":821,"license_code":453,"credit_html":822,"title":823,"description":824,"author":466,"original_width":458,"original_height":459},35422,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701519","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701519\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, neptunite, joaquinite-(Ce), natrolite, serpentine.jpg","benitoite, neptunite, joaquinite-(Ce), natrolite, serpentine : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":826,"source_url":827,"license_code":341,"credit_html":828,"title":829,"description":830,"author":457,"original_width":458,"original_height":459},35424,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17448706","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17448706\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), bénitoïte, neptunite, natrolite, serpentine (Gem Mine San-Benito Californie - USA) 1.JPG","joaquinite-(Ce), benitoite, neptunite, djurleite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)",{"id":832,"source_url":833,"license_code":341,"credit_html":834,"title":835,"description":836,"author":466,"original_width":458,"original_height":459},35425,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137697","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137697\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, bénitoïte, neptunite, natrolite 1.jpeg","djurleite, benitoïte, neptunite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)",{"id":838,"source_url":839,"license_code":341,"credit_html":840,"title":841,"description":836,"author":466,"original_width":458,"original_height":459},35426,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137699","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137699\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, bénitoïte, neptunite, natrolite.jpeg",{"id":843,"source_url":844,"license_code":341,"credit_html":845,"title":846,"description":523,"author":466,"original_width":458,"original_height":459},35427,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=22584470","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=22584470\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte, neptunite, joaquinite-(Ce), natrolite, serpentine 2.JPG",{"id":848,"source_url":849,"license_code":453,"credit_html":850,"title":851,"description":852,"author":536,"original_width":538,"original_height":853},38598,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40271815","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40271815\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Catapleiite, Natrolite-168971.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCatapleiite\" class=\"extiw\" title=\"en:Catapleiite\">Catapleiite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>The rosette is ~ 12 mm in diameter. Thanks to Jean-Yves Lamoureux (found Oct 1995). MOB coll.\u003C\u002Fdd>\n\u003Cdd>Per JY: \"October 15, 1995 was the date, a late Sunday afternoon find, and we only collected the surface of this huge vertical pocket. Asked Jean-Guy Poudrette the permission to come back the next day, but they had to blast this area early in the morning... Sigh.\"\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",729,{"id":855,"source_url":856,"license_code":453,"credit_html":857,"title":858,"description":661,"author":536,"original_width":538,"original_height":859},38599,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40272074","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40272074\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Catapleiite, Natrolite-209451.jpg",683,{"id":861,"source_url":862,"license_code":453,"credit_html":863,"title":864,"description":865,"author":457,"original_width":458,"original_height":459},52554,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11723297","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11723297\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Neptunite, bénitoïte, joaquinite-(Ce) sur natrolite et serpentine (USA) 2.jpg","benitoite, neptunite, joaquinite-(Ce), djurleite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA - benitoite : 15,5 mm, neptunite : 43 mm",{"id":867,"source_url":868,"license_code":341,"credit_html":869,"title":870,"description":724,"author":466,"original_width":458,"original_height":459},52556,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13585364","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13585364\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte, neptunite, joaquinite-(Ce) sur natrolite (San-Benito Mine Californie - USA).jpg",{"id":872,"source_url":873,"license_code":341,"credit_html":874,"title":875,"description":876,"author":457,"original_width":458,"original_height":459},52557,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17448678","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17448678\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), benitoite, neptunite, natrolite.jpg","joaquinite-(Ce), benitoite, neptunite, djurleite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USAj",{"id":878,"source_url":879,"license_code":341,"credit_html":880,"title":881,"description":882,"author":466,"original_width":458,"original_height":459},52558,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=19987714","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=19987714\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, bénitoïte, neptunite, joaquinite-(Ce), natrolite, serpentine 1.JPG","djurleite, benitoïte, neptunite, joaquinite-(Ce), natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org",{"id":884,"source_url":885,"license_code":341,"credit_html":886,"title":887,"description":888,"author":466,"original_width":458,"original_height":459},52559,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137698","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137698\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, bénitoïte, neptunite, joaquinite-(Ce), natrolite.jpeg","djurleite, benitoïte, neptunite, joaquinite-(Ce), natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)",{"id":890,"source_url":891,"license_code":341,"credit_html":892,"title":893,"description":894,"author":378,"original_width":895,"original_height":896},56870,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=29729003","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=29729003\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Gmelinite-Na, Natrolite-356545.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGmelinite\" class=\"extiw\" title=\"en:Gmelinite\">Gmelinite-Na\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite-Ca\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Magheramorne Quarry, Larne, Co. Antrim, Northern Ireland, UK\u003C\u002Fdd>\n\u003Cdd>Size: 6.6 x 6.0 x 2.5 cm\u003C\u002Fdd>\n\u003Cdd>Sparkling, gemmy, colorless gmelinite microcrystals, some of which appear to be sceptered, line a protected, well-placed vug in basalt matrix. This unusual specimen also features two generations of natrolite: nubby, snow-white balls; and diverging sprays of tiny, colorless, needles. IF we read the slew of accompanying labels right...whoever DID know this material made an awfully big deal of it. Ex. Howard Belsky Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",465,411,{"id":898,"source_url":899,"license_code":341,"credit_html":900,"title":901,"description":894,"author":378,"original_width":895,"original_height":902},56871,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=29729006","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=29729006\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Gmelinite-Na, Natrolite-356546.jpg",466,{"id":904,"source_url":905,"license_code":453,"credit_html":906,"title":907,"description":908,"author":466,"original_width":458,"original_height":459},61656,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5311509","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5311509\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte, neptunite, joaquinite-(Ce), natrolite 1 (USA).jpg","benitoite, neptunite, joaquinite-(Ce), natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":910,"source_url":911,"license_code":341,"credit_html":912,"title":913,"description":914,"author":378,"original_width":379,"original_height":915},61658,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151767","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151767\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce)-Natrolite-177673.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJoaquinite-(Ce)\" class=\"extiw\" title=\"en:Joaquinite-(Ce)\">Joaquinite-(Ce)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 8.5 x 7.6 x 0.8 cm.\u003C\u002Fdd>\n\u003Cdd>A VERY LARGE specimen of natrolite matrix with SHARP, LUSTROUS, caramel-colored joaquinites to 2mm in size spaced like a ribbon running the length of the piece. These are actually larger and sharper than average for the species. Ex. Martin Zinn Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",305,{"id":917,"source_url":918,"license_code":341,"credit_html":919,"title":920,"description":921,"author":466,"original_width":458,"original_height":459},61660,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13586043","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13586043\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, neptunite, joaquinite-(Ce), natrolite.jpg","benitoite, joaquinite-(Ce), neptunite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":923,"source_url":924,"license_code":341,"credit_html":925,"title":926,"description":529,"author":466,"original_width":458,"original_height":459},61663,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=16134260","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=16134260\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), neptunite et natrolite (USA) 1.JPG",{"id":928,"source_url":929,"license_code":341,"credit_html":930,"title":931,"description":932,"author":466,"original_width":458,"original_height":459},61664,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=22522069","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=22522069\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), neptunite, natrolite, serpentine.jpeg","crystals of joaquinite-(Ce), crystals of neptunite, natrolite, serpentine : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":934,"source_url":935,"license_code":341,"credit_html":936,"title":937,"description":938,"author":466,"original_width":939,"original_height":940},61665,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=32968098","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=32968098\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-Ce, neptunite, natrolite 300-3-FS.jpg","crystals of joaquinite-(Ce), crystals of neptunite, crystals of natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",4341,3390,{"id":942,"source_url":943,"license_code":341,"credit_html":944,"title":945,"description":946,"author":457,"original_width":947,"original_height":459},64395,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=30143158","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=30143158\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Leucophanite, natrolite, rhodochrosite, aegirine 300-4-2003.JPG","leucophanite, natrolite, rhodochrosite, aegirine : Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada",3038,{"id":949,"source_url":950,"license_code":341,"credit_html":951,"title":952,"description":953,"author":466,"original_width":458,"original_height":459},64396,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=30143159","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=30143159\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Leucophanite, natrolite, rhodochrosite, aegirine 300-4-2014.JPG","crystals of leucophanite, crystals of natrolite, crystals of rhodochrosite, crystals of aegirine : Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada",{"id":955,"source_url":956,"license_code":341,"credit_html":957,"title":958,"description":946,"author":457,"original_width":458,"original_height":459},64397,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=30143160","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=30143160\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Leucophanite, natrolite, rhodochrosite, aegirine 300-4-1929.JPG",{"id":960,"source_url":961,"license_code":384,"credit_html":962,"title":963,"description":964,"author":965,"original_width":966,"original_height":967},66007,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=80074939","Dguendel, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=80074939\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Freiberg, Terra mineralia, Neptunit auf Natrolith.JPG","Freiberg, Terra mineralia, neptunite on natrolite, location: Park County, California, USA","Dguendel",3894,3050,{"id":969,"source_url":970,"license_code":341,"credit_html":971,"title":972,"description":973,"author":378,"original_width":379,"original_height":974},79092,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141263","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141263\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Serandite-Natrolite-130268.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FS%C3%A9randite\" class=\"extiw\" title=\"en:Sérandite\">Sérandite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont_Saint-Hilaire\" class=\"extiw\" title=\"en:Mont Saint-Hilaire\">Mont Saint-Hilaire\u003C\u002Fa>, Rouville RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont%C3%A9r%C3%A9gie\" class=\"extiw\" title=\"en:Montérégie\">Montérégie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-123123.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.0 x 2.0 x 1.2 cm.\u003C\u002Fdd>\n\u003Cdd>A killer Mt. St-Hilaire thumbnail of lustrous, parallel-growth, salmon-pink serandite crystals beautifully angling off the back of a sharply terminated, lustrous, grayish-white natrolite crystal. A superb, pristine combo piece from the Ernie Schlichter Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",405,{"id":976,"source_url":977,"license_code":341,"credit_html":978,"title":979,"description":980,"author":457,"original_width":981,"original_height":459},79095,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17446489","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17446489\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Sérandite sur natrolite (Mont Saint-Hilaire Québec - Canada).JPG","serandite,natrolite, rhodochrosite : Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada",3159,{"id":983,"source_url":984,"license_code":453,"credit_html":985,"title":986,"description":987,"author":536,"original_width":988,"original_height":538},86334,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=32656873","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=32656873\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Wöhlerite, Zircon, Natrolite, Microcline-282766.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FW%C3%B6hlerite\" class=\"extiw\" title=\"en:Wöhlerite\">Wöhlerite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FZircon\" class=\"extiw\" title=\"en:Zircon\">Zircon\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMicrocline\" class=\"extiw\" title=\"en:Microcline\">Microcline\u003C\u002Fa> (FOV 4.8 x 6.7 mm)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> Orange wöhlerite (partial xl) with tan zircon bi-pyramids and white \"natrolite\" on a bit of microcline. (The \"natrolite\" is falling apart and all or most of it is probably gonnardite.)\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",717,[990,997,1002,1007,1013],{"id":991,"url":992,"label":993,"formula":994,"spacegroup":995,"year":996},9771,"\u002Fcif\u002F9771.cif","Wang 2008 · Si3 Al2 Na2 O10 (1)","Si3 Al2 Na2 O10","F 1 1 2",2008,{"id":998,"url":999,"label":1000,"formula":994,"spacegroup":1001,"year":996},9772,"\u002Fcif\u002F9772.cif","Wang 2008 · Si3 Al2 Na2 O10 (2)","F d d 2",{"id":1003,"url":1004,"label":1005,"formula":1006,"spacegroup":1001,"year":317},9773,"\u002Fcif\u002F9773.cif","Seryotkin 2005 · (Na1.92 Mg.06 Ca.02) Al2 Si3 O11.84 D2.96","(Na1.92 Mg.06 Ca.02) Al2 Si3 O11.84 D2.96",{"id":1008,"url":1009,"label":1010,"formula":1011,"spacegroup":1012,"year":317},9774,"\u002Fcif\u002F9774.cif","Seryotkin 2005 · (Na1.92 Mg.06 Ca.02) Al2 Si3 O13.5 D6.99","(Na1.92 Mg.06 Ca.02) Al2 Si3 O13.5 D6.99","F 1 d 1",{"id":1014,"url":1015,"label":1016,"formula":1017,"spacegroup":1018,"year":1019},9775,"\u002Fcif\u002F9775.cif","Stuckenschmidt 1996","Si3 Al2 O12 H3","C 1 1 21",1996,[1021,1022,1023,1024,1025,1026,1027,1028,1029,1030,1031,1032,1033,1034,1035,1036,1037,1038,1039,1040,1041,1042,1043,1044,1045,1046],"Apoanalcit","Apoanalcite","Ædelite (of Kirwan)","Brevicit","Cockalit","Cockalite","Crocalit","Crocalita","Crocalite","Epinatrolita","Epinatrolite","Epinatrolith","Höganit","Laubanite","Laubannite","Lehuntit","Lehuntite","Natrium-Mesotyp","Natronite (of ?)","Needlestone","Paleo-natrolith","Pink Larimar","Portite","Radiolite","Radyolith","Rhodatrolite",[1048,1052,1056,1060,1063,1068,1072,1075,1079,1083,1087,1099,1103,1107,1111,1115,1118,1122,1126,1129,1132,1139,1142,1146,1149,1153,1156,1161,1164],{"lang":1049,"names":1050},"az",[1051],"Natrolit",{"lang":1053,"names":1054},"bg",[1055],"Натролит",{"lang":1057,"names":1058},"ca",[1059],"natrolita",{"lang":1061,"names":1062},"cs",[1051],{"lang":1064,"names":1065},"de",[1066,1067],"Laubanit","Natrolith",{"lang":1069,"names":1070},"eo",[1071],"Natrolito",{"lang":1073,"names":1074},"es",[1059],{"lang":1076,"names":1077},"et",[1078],"natroliit",{"lang":1080,"names":1081},"eu",[1082],"Natrolita",{"lang":1084,"names":1085},"fa",[1086],"ناترولیت",{"lang":1088,"names":1089},"fr",[1022,1090,1091,1029,1092,1093,1094,1037,1095,1096,7,1097,1098],"Brevicite","Chondrikite","Édelite","Épimatrolite","Hösruite","Mésotype","Mooraboolite","Savite","Zéolithe farineuse",{"lang":1100,"names":1101},"he",[1102],"נתרוליט",{"lang":1104,"names":1105},"hu",[1106],"Nátrolit",{"lang":1108,"names":1109},"it",[1110],"natrolite",{"lang":1112,"names":1113},"ja",[1114],"ソーダ沸石",{"lang":1116,"names":1117},"mk",[1055],{"lang":1119,"names":1120},"nb",[1121],"natrolitt",{"lang":1123,"names":1124},"nl",[1125],"natroliet",{"lang":1127,"names":1128},"nn",[1121],{"lang":1130,"names":1131},"pl",[1051],{"lang":1133,"names":1134},"ru",[1135,1136,1137,1055,1138],"Бергманит","Бергманнит","Мезотип","Фаргит",{"lang":1140,"names":1141},"sl",[1051],{"lang":1143,"names":1144},"sr",[1145],"натролит",{"lang":1147,"names":1148},"sv",[1051],{"lang":1150,"names":1151},"uk",[1152],"Натроліт",{"lang":1154,"names":1155},"uz",[1051],{"lang":1157,"names":1158},"zh",[1159,1160],"鈉沸石","钠沸石",{"lang":1162,"names":1163},"zh-cn",[1160],{"lang":1165,"names":1166},"zh-hans",[1160],"Q415318",{"history":1169,"applications":1173},{"markdown":1170,"model_version":1171,"prompt_version":1172,"reviewed_at":11},"Heat a small crystal of natrolite and a wisp of steam rises from the stone. That trick gave the whole family its name half a century before natrolite got its own.\n\nIn 1756 the Swedish mineralogist Axel Fredrik Cronstedt found that a fibrous mineral he was studying released a surprising amount of water when heated. He coined the term **zeolite** from the Greek roots for *to boil* and *stone* — a stone that boils[1]. Natrolite is the textbook example of that behaviour: water sits loosely inside its open crystal framework and leaves when the temperature rises.\n\nThe mineral itself was named in 1803 by the German chemist Martin Heinrich Klaproth. He noticed the high sodium content of a sample from Hohentwiel, in the Hegau region of southern Germany, and built the name from *natron* — the old word for soda — and the same Greek *lithos* for stone[2]. Mineralogists sometimes also call it **needle stone** or **needle-zeolite**, after the long slender form the crystals usually take[3].\n\nOne footnote of confusion: in 1812 the English chemist William Hyde Wollaston used the same name *natrolite* for a soda-bearing variety of scapolite. That second usage did not stick, and the name now belongs to Klaproth's zeolite alone[4].","claude-opus-4-7","1.7.0",{"markdown":1174,"model_version":1171,"prompt_version":1172,"reviewed_at":11},"Most of the world's zeolite work happens inside synthetic crystals grown in factories, not in mined natural ones. Natrolite is no exception. Its main modern footprint is in laboratories and in collectors' cabinets, not on production lines.\n\nIts standout contribution sits in the history of chemistry. Natrolite was one of the first zeolites in which **cation exchange** was observed — the ability of the crystal to swap one sodium ion in its framework for a calcium or potassium ion from a passing solution, and back again[1]. That property is the basis of every modern water softener and of much of industrial catalysis. The mineral does also see direct use as a softener, removing the calcium and magnesium that make water hard[2].\n\nBeyond that the picture thins. Most commercially available natural zeolites belong to the mordenite, clinoptilolite or analcime families[3] — not to natrolite. The mineral is mined in no notable quantity. Demand for it comes mainly from collectors, who prize the slender radiating sprays that grow inside basalt cavities, and from researchers who use its open structure as a model system for studying how cations move through silicate frameworks."]