[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:3941":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":24,"key_elements":11,"impurities":25,"cim":26,"ima_status":27,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":11,"discovery_year":30,"strunz10ed1":31,"strunz10ed2":32,"strunz10ed3":33,"strunz10ed4":34,"dana8ed1":35,"dana8ed2":35,"dana8ed3":35,"dana8ed4":35,"csystem":36,"cclass":37,"spacegroup":11,"spacegroupset":35,"a":38,"b":39,"c":40,"alpha":35,"beta":35,"gamma":35,"aerror":41,"berror":41,"cerror":41,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":42,"csmetamict":14,"commentcrystal":43,"twinning":44,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":45,"tlform":11,"hmin":46,"hmax":47,"hardtype":11,"vhnmin":35,"vhnmax":35,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":48,"dmeas2":49,"dcalc":50,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":51,"commentluster":11,"diapheny":52,"streak":53,"colour":54,"commentcolor":11,"colors":55,"streak_colors":62,"luminescence":11,"uv":11,"cleavage":63,"cleavagetype":64,"fracturetype":65,"tenacity":66,"commentbreak":11,"opticaltype":67,"opticalsign":68,"opticalalpha":69,"opticalalpha2":70,"opticalalphaerror":11,"opticalbeta":71,"opticalbeta2":72,"opticalbetaerror":11,"opticalgamma":73,"opticalgamma2":74,"opticalgammaerror":11,"opticalomega":35,"opticalomega2":35,"opticalomegaerror":11,"opticalepsilon":35,"opticalepsilon2":35,"opticalepsilonerror":11,"opticaln":35,"opticaln2":35,"opticalnerror":11,"optical2vcalc":75,"optical2vcalc2":76,"optical2vcalcerror":11,"optical2vmeasured":75,"optical2vmeasured2":77,"optical2vmeasurederror":11,"rimin":78,"rimax":79,"opticaldispersion":80,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":81,"magnetism":11,"thermalbehaviour":82,"other":83,"industrial":11,"occurrence":84,"otheroccurrence":85,"type_specimen_store":11,"description_short":86,"aboutname":87,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":88,"reviewed_at":11,"variety_of":11,"varieties":89,"group_members":94,"associates":102,"confused_with":103,"type_localities":104,"occurrence_total":111,"citations":112,"images":257,"structures":396,"synonyms":414,"language_names":456,"wikidata_qid":480,"texts":481},3941,"1:1:3941:9","58b1276f-1ecc-4edd-b2c4-f9af58d843b4","Thomsonite-Ca","Thm-Ca",0,"mineral",null,28896,17034,false,"NaCa\u003Csub>2\u003C\u002Fsub>[Al\u003Csub>5\u003C\u002Fsub>Si\u003Csub>5\u003C\u002Fsub>O\u003Csub>20\u003C\u002Fsub>]·6H\u003Csub>2\u003C\u002Fsub>O","NaCa\u003Csub>2\u003C\u002Fsub>(Al\u003Csub>5\u003C\u002Fsub>Si\u003Csub>5\u003C\u002Fsub>)O\u003Csub>20\u003C\u002Fsub> · 6H\u003Csub>2\u003C\u002Fsub>O",[18,19,20,21,22,23],"Al","Ca","Na","Si","O","H",[18,19,20,21,22,23],",K,,","16.10.4",[28,29],"APPROVED","GRANDFATHERED","1820","9","G","A","10","0","Orthorhombic",8,"13.088","13.052","13.229",2,4,"Space group Pncn. Note: Thomsonite-Ca with disordered Al\u002FSi-distribution has a = 13.0809(3), b = 13.0597(3), c = 6.6051(1) Å, V = 1128.37(14) Å3 and space group Pbnm (Gatta et al., 2010).","On {110}. This twinning can be cyclic for repetition of 4 crystals. \r\nReference: Rudy Tschernich on Micro Probe (1996 vol. VIII, n. 4) SEM photo n.489 and one twinned crystal drawing. The sample is from Yellow Lake, Olalla, British Columbia, Canada","Crystals commonly prismatic, acicular, bladed, massive.\r\n\r\nForms:\r\nCommon {100}, {010}, {001}, {110}. Uncommon {101}, {401}, {801}, {0·1·48}. Rare {012}, {111}, {705}, {334}, {502}, {301}, {401}, {021}, {072}, {041}, {071}, {081}, {601}, {0·14·1}, {0·1·50}.",5,5.5,"2.23","2.29","2.366","Vitreous,Pearly","Transparent,Translucent","White","Colourless, white, light yellow, light green, pink, brown",[56,57,58,59,60,61],"colorless","white","yellow","green","pink","brown",[57],"Perfect on {010}\r\nGood on {100}","Perfect","Irregular\u002FUneven,Sub-Conchoidal","brittle","Biaxial","+","1.511","1.53","1.513","1.532","1.516","1.545","44","80","75",1.511,1.545,"r > v strong","Pyroelectric","Before the blowpipe, fuses with intumescence, at 2 to a white enamel.","Gelatinizes in HCl.","Amygdaloids in basalt.","In vugs in basalts, as cement in some sandstones.","Zeolite Group.\r\nThe calcium analogue of Thomsonite-Sr.\r\n\r\nSome habits may be confused with stellerite.\r\n\r\nA potential Mg analogue may be present at this locality: https:\u002F\u002Fwww.mindat.org\u002Floc-414057.html","Renamed in 1820 by Henry James Brooke in honour of Thomas Thomson (12 April 1773, Crieff, Perthshire, Scotland - 2 July 1852, Kilmun, Argyleshire, Scotland), professor of chemistry at the University of Glasgow. Thomson was an indefatigable mineral chemist and contributed enormously to the number of accurate chemical analyses of minerals during his career, as well as having discovered many new mineral species. The suffix -Ca denotes the dominance of calcium in the mineral.","2026-04-22 14:05:38",[90],{"id":91,"name":92,"entrytype":41,"csystem":11,"ima_formula":11,"mindat_formula":93,"hmin":11,"hmax":11,"dmeas":35,"dcalc":35,"primary_image_id":11},11642,"Strontium-bearing Thomsonite","Na(Ca,Sr)\u003Csub>2\u003C\u002Fsub>[Al\u003Csub>5\u003C\u002Fsub>Si\u003Csub>5\u003C\u002Fsub>O\u003Csub>20\u003C\u002Fsub>]·6H\u003Csub>2\u003C\u002Fsub>O",[95],{"id":96,"name":97,"entrytype":9,"csystem":36,"ima_formula":98,"mindat_formula":99,"hmin":46,"hmax":46,"dmeas":100,"dcalc":101,"primary_image_id":11},28899,"Thomsonite-Sr","NaSr\u003Csub>2\u003C\u002Fsub>(Al\u003Csub>5\u003C\u002Fsub>Si\u003Csub>5\u003C\u002Fsub>)O\u003Csub>20\u003C\u002Fsub> · 6-7H\u003Csub>2\u003C\u002Fsub>O","Na(Sr,Ca)\u003Csub>2\u003C\u002Fsub>[Al\u003Csub>5\u003C\u002Fsub>Si\u003Csub>5\u003C\u002Fsub>O\u003Csub>20\u003C\u002Fsub>]·7H\u003Csub>2\u003C\u002Fsub>O","2.47","2.62",[],[],[105],{"id":106,"txt":107,"latitude":108,"longitude":109,"country":110},2889,"Old Kilpatrick, West Dunbartonshire, Scotland, UK",55.92534,-4.4558289,"UK",465,[113,117,121,125,129,133,137,140,143,147,150,154,158,162,166,170,174,179,184,188,192,197,202,206,209,213,217,221,224,227,230,234,238,243,248,253],{"id":114,"year":115,"html":116,"doi":11},16125588,1820,"Brooke, H. J. (1820) On mesotype, needlestone, and thomsonite. \u003Ci>Annals of Philosophy\u003C\u002Fi>,  16. 193-194 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FAP16_193.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":118,"year":119,"html":120,"doi":11},16125589,1821,"Brewster, D. (1821) Account of comptonite, a new mineral from Vesuvius. Edinburgh Philosophical Journal: 4: 131-133. (as comptonite)",{"id":122,"year":123,"html":124,"doi":11},16125590,1822,"Berzelius, M. (1822) On the chemical composition of some minerals of the zeolite family. Edinburgh Philosophical Journal: 7: 1-11.",{"id":126,"year":127,"html":128,"doi":11},16125591,1840,"Thomson, T. (1840) On the minerals found in the neighbourhood of Glasgow. Philosophical Magazine and Journal of Science, Third Series: 17: 402-418.",{"id":130,"year":131,"html":132,"doi":11},15988264,1858,"How, Henry (1858) Chemical analysis of faroelite and some other zeolites occurring in Nova Scotia. \u003Ci>American Journal of Science and Arts\u003C\u002Fi>,  S. 2 Vol. 26. 30-34",{"id":134,"year":135,"html":136,"doi":11},519161,1923,"Wherry, Edgar T. (1923) Note on the composition of thomsonite. \u003Ci>American Mineralogist\u003C\u002Fi>,  8 (7) 121-124 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM8\u002FAM8_121.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":138,"year":135,"html":139,"doi":11},519162,"Gordon, Samuel G. (1923) Optical notes on thomsonite. \u003Ci>American Mineralogist\u003C\u002Fi>,  8 (7) 125-126 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM8\u002FAM8_125.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":141,"year":135,"html":142,"doi":11},16125593,"Bellinzona, G. (1923) Thomsonite associata a cabasite dei Monzoni. Reale Accademia Nazionale dei Lincei, Rendiconti della classe di scienze fisiche, matematiche e naturali, Ser 5: 32: 346-348.",{"id":144,"year":145,"html":146,"doi":11},519303,1924,"Phillips, Alexander H. (1924) Thomsonite from Peekskill, New York. \u003Ci>American Mineralogist\u003C\u002Fi>,  9 (12) 240-241 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM9\u002FAM9_240.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":148,"year":145,"html":149,"doi":11},16125597,"Gordon, S.G. (1924) The composition of thomsonite. Proceedings of the Academy of Natural Science, Philadelphia: 76: 103-107.",{"id":151,"year":152,"html":153,"doi":11},519390,1925,"Wherry, Edgar T. (1925) Pseudo-isomorphism as illustrated in thomsonite. \u003Ci>American Mineralogist\u003C\u002Fi>,  10 (10) 342-347 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM10\u002FAM10_342.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":155,"year":156,"html":157,"doi":11},519440,1926,"Winchell, A. N. (1926) Doubtful mineral species as illustrated by \"faroelite\". \u003Ci>American Mineralogist\u003C\u002Fi>,  11 (4) 82-89 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM11\u002FAM11_82.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":159,"year":160,"html":161,"doi":11},16125600,1927,"Gaertner, H.R., and Machatschki, F. (1927) Der Thomsonit aus dem Basalt von Disko, Gronland. Centralbl. Mineralogie, Abt. A: 11: 365-366.",{"id":163,"year":164,"html":165,"doi":11},16125601,1928,"Hewett, D.F., Shannon, E.W., and Gonyer, F.A. (1928) Zeolites from Ritter Hot Spring, Grant County, Oregon: U.S. National Museum Proceedings: 73: 16.",{"id":167,"year":168,"html":169,"doi":11},16125602,1929,"Gennaro, V. (1929) Thomsonite e scolecite dell' alta Valle di Ayas e delle Valli di Lanzo. Atti R. Accad. Sci. Torino: 64: 133-143.",{"id":171,"year":172,"html":173,"doi":11},16125603,1931,"Wyart, J. (1931) Sue les reseaux crustallin de la thomsonite et de la mesotype. Compt. Rend. Acad. Sci. Paris: 193: 666-668.",{"id":175,"year":176,"html":177,"doi":178},7136,1932,"Hey, Max H. (1932) Studies on the zeolites. Part II. Thomsonite (including faroelite) and gonnardite. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>,  23 (137) 51-125 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1932.023.137.01'>doi:10.1180\u002Fminmag.1932.023.137.01\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_23\u002F23-137-51.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1932.023.137.01",{"id":180,"year":181,"html":182,"doi":183},104744,1933,"Taylor, W. H., Meek, C. A., Jackson, W. W. (1933) The Structures of the Fibrous Zeolites. \u003Ci>Zeitschrift für Kristallographie - Crystalline Materials\u003C\u002Fi>,  84 (1) 373-398 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1933.84.1.373'>doi:10.1524\u002Fzkri.1933.84.1.373\u003C\u002Fa>","10.1524\u002Fzkri.1933.84.1.373",{"id":185,"year":186,"html":187,"doi":11},524412,1965,"Fleischer, Michael (1965) New Mineral Names. \u003Ci>American Mineralogist\u003C\u002Fi>,  50 (11-12) 2096-2111 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM50\u002FAM50_2096.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":189,"year":190,"html":191,"doi":11},16125606,1978,"Wise, William, Tschernich, Rudy W. (1978) Habits, crystal forms and composition of thomsonite. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  16 (3) 487-493 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FCM16_487.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":193,"year":194,"html":195,"doi":196},16577037,1981,"Alberti, Alberto, Vezzalini, Giovanna, Tazzoli, Vittorio (1981) Thomsonite: a detailed refinement with cross checking by crystal energy calculations. \u003Ci>Zeolites\u003C\u002Fi>,  1 (2) 91-97 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fs0144-2449(81)80021-8'>doi:10.1016\u002Fs0144-2449(81)80021-8\u003C\u002Fa>","10.1016\u002Fs0144-2449(81)80021-8",{"id":198,"year":199,"html":200,"doi":201},215568,1990,"Ståhl, K., Kvick, Å ;., Smith, J. V. (1990) Thomsonite, a neutron diffraction study at 13 K. \u003Ci>Acta Crystallographica Section C Crystal Structure Communications\u003C\u002Fi>,  46 (8) 1370-1373 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0108270189013259'>doi:10.1107\u002Fs0108270189013259\u003C\u002Fa>","10.1107\u002Fs0108270189013259",{"id":203,"year":204,"html":205,"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":207,"year":204,"html":208,"doi":11},1118707,"Tschernich, Rudy W. (1992) \u003Ci>Zeolites of the World\u003C\u002Fi>. Geoscience Press, Inc. 567pp.",{"id":210,"year":211,"html":212,"doi":11},16130603,1994,"Vezzalini, G., Quartieri, S., Rossi, A., Alberti, A. (1994) Occurrence of zeolites from Northern Victoria Land, Antarctica. \u003Ci>Terra Antarctica\u003C\u002Fi>,  1. 96-99",{"id":214,"year":215,"html":216,"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":218,"year":219,"html":220,"doi":11},15992529,2001,"Pekov, I. V., Lovskaya, E. V., Turchkova, A. G., Chukanov, N. V., Zadov, A. E., Rastsvetaeva, R. K., Kononkova, N. N. (2001) Thomsonite-Sr (Sr,Ca)\u003Csub>2\u003C\u002Fsub>Na[Al\u003Csub>2\u003C\u002Fsub>Si\u003Csub>5\u003C\u002Fsub>O\u003Csub>20\u003C\u002Fsub>]·6–7H\u003Csub>2\u003C\u002Fsub>O, a new zeolite mineral from Khibiny Massif (Kola Peninsula) and thomsonite-Ca—thomsonite-Sr an isomorphous series. \u003Ci>Zapiski Vserossijskogo Mineralogicheskogo Obshchestva\u003C\u002Fi>,  130 (4) 46-55 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FZVMO130N4_46.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":222,"year":219,"html":223,"doi":11},16125611,"Gurbanova, O. A., Rastsvetaeva, R. K., Pekov, I. V., Turchkova, A. G. (2001) Crystal structure of strontium-rich thomsonite. \u003Ci>Doklady Earth Sciences\u003C\u002Fi>,  376. 101-104",{"id":225,"year":219,"html":226,"doi":11},16125612,"Gurbanova, O. A., Rastsvetaeva, R. K., Pekov, I. V., Turchkova, A. G. (2001) Crystal structure of strontium-rich thomsonite. \u003Ci>Doklady Akademii Nauk\u003C\u002Fi>,  376. 387-390",{"id":228,"year":219,"html":229,"doi":11},16118950,"Jambor, John L., Roberts, Andrew C. (2001) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  86 (9) 1112-1115 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fmsa\u002Fammin\u002Ftoc\u002FAbstracts\u002F2001_Abstracts\u002FSept01_Abstracts\u002FJambor_p1112_01.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":231,"year":232,"html":233,"doi":11},15961385,2002,"Jambor, John L., Grew, Edward S., Roberts, Andrew C. (2002) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  87. 1509-1513 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fmsa\u002Fammin\u002Ftoc\u002FAbstracts\u002F2002_Abstracts\u002FOct02_Abstracts\u002FJambor_p1509_02.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":235,"year":232,"html":236,"doi":237},63724,"Mandarino, Joseph A. (2002) New minerals. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  40 (5). 1527-1550 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgscanmin.40.5.1529'>doi:10.2113\u002Fgscanmin.40.5.1529\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fcm\u002Fvol40\u002FCM40_1529.pdf' class='refpdflink'>\u003C\u002Fa>","10.2113\u002Fgscanmin.40.5.1529",{"id":239,"year":240,"html":241,"doi":242},153042,2004,"Lee, Y., Hriljac, J. A., Studer, A., Vogt, T. (2004) Anisotropic compression of edingtonite and thomsonite to 6 GPa at room temperature. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  31 (1) 22-27 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs00269-003-0330-6'>doi:10.1007\u002Fs00269-003-0330-6\u003C\u002Fa>","10.1007\u002Fs00269-003-0330-6",{"id":244,"year":245,"html":246,"doi":247},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":249,"year":250,"html":251,"doi":252},396478,2010,"Gatta, G. D., Kahlenberg, V., Kaindl, R., Rotiroti, N., Cappelletti, P., de' Gennaro, M. (2010) Crystal structure and low-temperature behavior of \"disordered\" thomsonite. \u003Ci>American Mineralogist\u003C\u002Fi>,  95 (4) 495-502 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2010.3353'>doi:10.2138\u002Fam.2010.3353\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fam\u002Fvol95\u002FAM95_495.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam.2010.3353",{"id":254,"year":255,"html":256,"doi":11},16967695,2021,"(2021) Thomsonite-Ca. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002FThomsonite-Ca.pdf' class='refpdflink'>\u003C\u002Fa>",[258,268,277,285,293,300,307,315,325,335,343,350,358,367,372,381,388],{"id":259,"source_url":260,"license_code":261,"credit_html":262,"title":263,"description":264,"author":265,"original_width":266,"original_height":267},24092,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175432","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175432\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonite-Ca-55547.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FThomsonite\" class=\"extiw\" title=\"en:Thomsonite\">Thomsonite-Ca\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Thomsonite Beach, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrand_Marais\" class=\"extiw\" title=\"en:Grand Marais\">Grand Marais\u003C\u002Fa>, Cook County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMinnesota\" class=\"extiw\" title=\"en:Minnesota\">Minnesota\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-16150.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A STRIKING buffed specimen of a 1.6 cm, banded, birds-eye, thomsonite-lintonite nodule nicely set in amygdaloidal matrix from the Grand Marais on the North Shore of Lake Superior, Minnesota. Thomsonite and lintonite are zeolites. Ex Richard Hauck Collection. 4.4 x 3.0 x 2.4 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",554,445,{"id":269,"source_url":270,"license_code":261,"credit_html":271,"title":272,"description":273,"author":274,"original_width":275,"original_height":276},82633,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1485991","No machine-readable author provided. Kluka assumed (based on copyright claims)., via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1485991\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonit Burnt Cabin Creek, Wheeler Co., Oregon, 2USA.jpg","Thomsonit_Burnt_Cabin_Creek,_Wheeler_Co.,_Oregon,_2USA; autor zdjęcia Paleonet; 10.12.2006r.","No machine-readable author provided. Kluka assumed (based on copyright claims).",640,480,{"id":278,"source_url":279,"license_code":261,"credit_html":280,"title":281,"description":282,"author":265,"original_width":283,"original_height":284},24093,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175476","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175476\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonite-Ca-60816.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FThomsonite\" class=\"extiw\" title=\"en:Thomsonite\">Thomsonite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FThomsonite\" class=\"extiw\" title=\"en:Thomsonite\">Thomsonite-Ca\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Thomsonite Beach, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrand_Marais\" class=\"extiw\" title=\"en:Grand Marais\">Grand Marais\u003C\u002Fa>, Cook County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMinnesota\" class=\"extiw\" title=\"en:Minnesota\">Minnesota\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-16150.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A STRIKING buffed and sawed specimen of a 2.3 cm, banded, birds-eye, thomsonite-lintonite nodule nicely set in amygdaloidal matrix from the Grand Marais on the North Shore of Lake Superior, Minnesota. Thomsonite and lintonite are zeolites. Ex Richard Hauck Collection. 3.6 x 3.6 x 2.8 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",500,431,{"id":286,"source_url":287,"license_code":261,"credit_html":288,"title":289,"description":290,"author":265,"original_width":291,"original_height":292},24094,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176900","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176900\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonite-Ca-223943.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FThomsonite\" class=\"extiw\" title=\"en:Thomsonite\">Thomsonite-Ca\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOberwiesenthal\" class=\"extiw\" title=\"en:Oberwiesenthal\">Hammerunterwiesenthal\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOberwiesenthal\" class=\"extiw\" title=\"en:Oberwiesenthal\">Oberwiesenthal\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FErzgebirge\" class=\"extiw\" title=\"en:Erzgebirge\">Erzgebirge\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSaxony\" class=\"extiw\" title=\"en:Saxony\">Saxony\u003C\u002Fa>, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-27260.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.8 x 6.0 x 2.6 cm.\u003C\u002Fdd>\n\u003Cdd>A very rich specimen of this rare zeolite species, which seldom crystallizes in zeolite deposits to the same degree as its more common cousins. This specimen is a rich example, from a classic old locality.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",630,750,{"id":294,"source_url":295,"license_code":261,"credit_html":296,"title":297,"description":290,"author":265,"original_width":298,"original_height":299},24095,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176901","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176901\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonite-Ca-223944.jpg",495,600,{"id":301,"source_url":302,"license_code":261,"credit_html":303,"title":304,"description":305,"author":265,"original_width":111,"original_height":306},24096,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177831","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177831\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonite-Ca-290015.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FThomsonite\" class=\"extiw\" title=\"en:Thomsonite\">Thomsonite-Ca\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Amudikha River, Nizhnyaya Tunguska River Basin (Lower Tunguska River), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEvenkiysky_District\" class=\"extiw\" title=\"en:Evenkiysky District\">Evenkia (Evenkiyskiy Autonomous okrug)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKrasnoyarsk_Krai\" class=\"extiw\" title=\"en:Krasnoyarsk Krai\">Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai)\u003C\u002Fa>, Eastern-Siberian Region, Russia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-5704.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.2 x 3 x 3 cm.\u003C\u002Fdd>\n\u003Cdd>Very rare, exceptional specimen of well-crystallized Thomsonite. The crystals are translucent to gemmy, have very good luster, and occur in dozens of platy fans (sprays) about .5 cm long. In discrete crystals like this, Thompsonite is very rare. This is old material from the Fersman Museum of Moscow.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",365,{"id":308,"source_url":309,"license_code":261,"credit_html":310,"title":311,"description":312,"author":265,"original_width":313,"original_height":314},24097,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10419456","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10419456\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonite-Ca-t07-87b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FThomsonite\" class=\"extiw\" title=\"en:Thomsonite\">Thomsonite-Ca\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Forra di Bulla (Pufels; Pufler Loch; Pufelser Loch), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FUrtij%C3%ABi\" class=\"extiw\" title=\"en:Urtijëi\">Ortisei (St Ulrich)\u003C\u002Fa>, Siusi Alp (Seis Alp), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FVal_Gardena\" class=\"extiw\" title=\"en:Val Gardena\">Gardena Valley (Gröden Valley)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProvince_of_Bolzano-Bozen\" class=\"extiw\" title=\"en:Province of Bolzano-Bozen\">Bolzano Province (South Tyrol)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTrentino-Alto_Adige\u002FS%C3%BCdtirol\" class=\"extiw\" title=\"en:Trentino-Alto Adige\u002FSüdtirol\">Trentino-Alto Adige\u003C\u002Fa>, Italy (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-29988.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 8.0 x 6.0 x 4.2 cm\n\u003Cdl>\u003Cdt>Thomsonite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Beautiful, salmon-colored, elongated crystals of thomsonite in a natural geode from this classic Alpine locality. This is from the collection of Phil Scalisi, exchanged to him from Harvard over 20 years ago. These crystals are quite large by any standard, alpine or otherwise.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",400,314,{"id":316,"source_url":317,"license_code":318,"credit_html":319,"title":320,"description":321,"author":322,"original_width":323,"original_height":324},24098,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=24933611","CC BY 3.0","Kelly Nash, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=24933611\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonite-Ca-473977.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FThomsonite-Ca\" class=\"extiw\" title=\"en:Thomsonite-Ca\">Thomsonite-Ca\u003C\u002Fa> (Size: 30 x 25 x 18 mm)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality:  Neer Road, Goble, Columbia County, Oregon, USA\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> Thomsonite spheres, some also with overgrowths of thomsonite, on calcite.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Kelly Nash",1024,823,{"id":326,"source_url":327,"license_code":328,"credit_html":329,"title":330,"description":331,"author":332,"original_width":333,"original_height":334},24106,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=48681941","CC BY-SA 4.0","Marie Čcheidzeová, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=48681941\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonit, Folknáře u Děčína, 2016, vel. dutiny cca 2,5 x 3 cm.jpg","Thomsonit from Děčín - Folknáře, Northern Bohemia, Czech Republic","Marie Čcheidzeová",1728,2304,{"id":336,"source_url":337,"license_code":328,"credit_html":338,"title":339,"description":340,"author":332,"original_width":341,"original_height":342},82641,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=67463513","Marie Čcheidzeová, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=67463513\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonit Pihel (1).jpg","Thomsonite from old Quarry in Pihel near Česká Lípa, Czech Republic",918,688,{"id":344,"source_url":345,"license_code":328,"credit_html":346,"title":347,"description":340,"author":332,"original_width":348,"original_height":349},24107,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=67463514","Marie Čcheidzeová, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=67463514\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonit Pihel (2).jpg",1436,1096,{"id":351,"source_url":352,"license_code":328,"credit_html":353,"title":354,"description":355,"author":332,"original_width":356,"original_height":357},82642,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=74920997","Marie Čcheidzeová, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=74920997\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mineralogické sbírky VŠCHT (4).jpg","Mineralogické sbírky Vysoké školy chemicko-technologické v Praze. Thomsonit z Pihelu",1203,1535,{"id":359,"source_url":360,"license_code":328,"credit_html":361,"title":362,"description":363,"author":364,"original_width":365,"original_height":366},82644,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=155026456","Petrmarcol, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=155026456\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonit.jpg","minerál thomsonit","Petrmarcol",4164,3123,{"id":368,"source_url":369,"license_code":261,"credit_html":370,"title":371,"description":273,"author":274,"original_width":275,"original_height":276},82646,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1485994","No machine-readable author provided. Kluka assumed (based on copyright claims)., via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1485994\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Thomsonit Burnt Cabin Creek, Wheeler Co., Oregon, USA.jpg",{"id":373,"source_url":374,"license_code":328,"credit_html":375,"title":376,"description":377,"author":378,"original_width":379,"original_height":380},82640,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=54091272","Kora27, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=54091272\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","2H1A6995OB.jpg","\u003Ca href=\"https:\u002F\u002Fde.wikipedia.org\u002Fwiki\u002FThomsonit\" class=\"extiw\" title=\"de:Thomsonit\">Thomsonit\u003C\u002Fa> aus Shivinli bei Aurangabad, Indien; ausgestellt in der Mineralienausstellung „\u003Ca href=\"https:\u002F\u002Fde.wikipedia.org\u002Fwiki\u002FTerra_mineralia\" class=\"extiw\" title=\"de:Terra mineralia\">terra Mineralia\u003C\u002Fa>“ der TU Bergakademie Freiberg (identifiziert nach Anfrage per Mail durch Andreas Massanek, Kustos der terra mineralia)","Kora27",5106,3355,{"id":382,"source_url":383,"license_code":261,"credit_html":384,"title":385,"description":386,"author":265,"original_width":299,"original_height":387},21810,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177541","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177541\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Schorlomite-Thomsonite-Ca-261791.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSchorlomite\" class=\"extiw\" title=\"en:Schorlomite\">Schorlomite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FThomsonite\" class=\"extiw\" title=\"en:Thomsonite\">Thomsonite-Ca\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Magnet Cove, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHot_Spring_County,_Arkansas\" class=\"extiw\" title=\"en:Hot Spring County, Arkansas\">Hot Spring County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArkansas\" class=\"extiw\" title=\"en:Arkansas\">Arkansas\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3407.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.2 x 4.4 x 4.0 cm.\u003C\u002Fdd>\n\u003Cdd>Schorlomite is a rare garnet species and thomsonite is a relatively uncommon zeolite group mineral. The famous Magnet Cove deposit is the Type Locality for schorlomite. This old-time specimen is essentially solid intergrown, blackish-brown schorlomite crystals. The crystals are euhedral to subhedral and the large crystal on top is 4.5 cm. Some crystal faces are very sharp, highly lustrous and are very well-striated. Little pods of cream-colored, lustrous and translucent lathes of thomsonite are scattered about. This is old-time material, probably around 100 years old, as there is a cloth label glued to the bottom of the piece. Ex. Mullane Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",472,{"id":389,"source_url":390,"license_code":261,"credit_html":391,"title":392,"description":393,"author":265,"original_width":394,"original_height":395},67082,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175310","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175310\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mesolite-Thomsonite-Ca-47569.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMesolite\" class=\"extiw\" title=\"en:Mesolite\">Mesolite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FThomsonite\" class=\"extiw\" title=\"en:Thomsonite\">Thomsonite-Ca\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Jaquish Road Cut, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGoble\" class=\"extiw\" title=\"en:Goble\">Goble\u003C\u002Fa>, Columbia County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOregon\" class=\"extiw\" title=\"en:Oregon\">Oregon\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-18148.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A DRAMATIC and SUPERB CABINET specimen of lustrous, pearlescent mesolite needles to 4.5 cm artistically set in a thompsonite-covered vug in basalt matrix from the famous, but relatively unknown Jaquish Road Cut at Goble, Oregon. This is one of the finer United States mesolite specimens, that you will ever see. Choice material from the Richard Hauck Collection. 10.4 x 6.0 x 5.7 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",650,517,[397,403,408],{"id":398,"url":399,"label":400,"formula":401,"spacegroup":402,"year":250},13579,"\u002Fcif\u002F13579.cif","Gatta 2010 · Na.7 Ca.773 (Al2.5 Si2.5) O12.83 H5.66","Na.7 Ca.773 (Al2.5 Si2.5) O12.83 H5.66","P b m n",{"id":404,"url":405,"label":406,"formula":407,"spacegroup":402,"year":250},13580,"\u002Fcif\u002F13580.cif","Gatta 2010 · Na.676 Ca.798 (Al2.5 Si2.5) O12.849 H5.698","Na.676 Ca.798 (Al2.5 Si2.5) O12.849 H5.698",{"id":409,"url":410,"label":411,"formula":412,"spacegroup":413,"year":199},13581,"\u002Fcif\u002F13581.cif","Stahl 1990","Na Ca1.88 Sr.12 Si5 Al5 O26 H12","P n c n",[415,416,417,418,419,420,421,422,423,424,425,426,427,428,429,430,431,432,433,434,435,436,437,438,439,440,441,442,443,444,445,446,447,448,449,450,451,452,453,454,455],"Bagotit","Bagotite","Calciothomsonite","Carphostilbit","Carphostilbite","Charphostilbit","Charphostilbite","Comptonit","Comptonite","Echellit","Echellita","Echellite","Faröelit","Faröelita","Faröelite","Farölith","Karphostilbit","Karphostilbita","Karphostilbite","Koodilit","Koodilita","Koodilite","Lintonit","Lintonita","Lintonite","Mesolitine","Mézoline","Ozarkit","Ozarkita","Ozarkite","Picrothomsonit","Picrothomsonita","Picrothomsonite","Thompsonit","Thompsonite","Thomsonit","Tonsonit","Tonsonite","Triploclase","Triploklas","Tripoclase",[457,461,465,468,472,476],{"lang":458,"names":459},"ca",[460],"Thomsonita-Ca",{"lang":462,"names":463},"de",[464],"Thomsonit-Ca",{"lang":466,"names":467},"eu",[460],{"lang":469,"names":470},"it",[471],"thomsonite-Ca",{"lang":473,"names":474},"nl",[475],"thomsoniet-Ca",{"lang":477,"names":478},"zh",[479],"钙杆沸石","Q2065265",{"history":482,"applications":486},{"markdown":483,"model_version":484,"prompt_version":485,"reviewed_at":11},"The name on this page is a Scottish chemist's name — passed first to a mineral he never named himself, then split, almost two centuries later, in two.\n\nIn 1820 the English crystallographer Henry James Brooke described a new zeolite-group mineral — a member of the family of hydrated framework silicates that release water when heated — from material collected in Scotland. He called it **thomsonite**, in honour of Thomas Thomson[1]. Thomson, born in Crieff, Perthshire on 12 April 1773, held the chair of chemistry at the University of Glasgow and was one of the busiest mineral analysts of his generation. He worked through enormous numbers of accurate chemical analyses and described several new species himself[2]. The honorific suited him: a chemist's name, fastened to a mineral whose interest is largely chemical.\n\nThrough the 19th century collectors found thomsonite in basalt cavities on every continent — Scotland, Nova Scotia, the Faroe Islands, New Jersey, Oregon, the Deccan Trap basalts of Gujarat in western India, the Ural Mountains[3]. One of those occurrences turned the mineral into a small American industry. The first documented report of thomsonite from the north shore of Lake Superior was published in 1888[4]. The pebbles were small — most less than a quarter of an inch across — but their concentric pink, green and white banding made them unlike any other Great Lakes stone[5]. After the completion of the North Shore Highway (state Route 61) in the 1920s the locality became accessible to weekend visitors from Duluth and the Twin Cities, and a rockhound trade grew up around Grand Marais in Cook County, Minnesota[4]. In 1962 Tania and Maurice Feigal opened the **Thomsonite Beach Motel and Jewelry Shop** six miles south of Grand Marais, beside their own gem-mining claim, and the place gave the beach its modern name[4].\n\nThe mineral kept Brooke's name straight through the 19th and 20th centuries. The current form **Thomsonite-Ca** dates only from 1997. That year the International Mineralogical Association adopted a new zeolite nomenclature. It split what had been called *thomsonite* into a series of two species, distinguished by their dominant exchangeable cation. Thomsonite-Ca, the calcium-dominant end-member, is by far the more common of the two; Thomsonite-Sr, the strontium-dominant one, is rare[6]. The suffix *-Ca* on the page header reads as the chemist's shorthand: calcium dominates the cation site.","claude-opus-4-7","1.7.0",{"markdown":487,"model_version":484,"prompt_version":485,"reviewed_at":11},"Thomsonite-Ca has almost no direct industrial use today. It is a **zeolite-group mineral** — built around an open framework of silicon, aluminium and oxygen with water and exchangeable cations trapped in the channels — but the commercial zeolite trade runs on other species. Detergent water-softening, agricultural soil treatment, ion-exchange water purification and catalysis in petroleum refining all rely on synthetic zeolites grown in factories, or on the natural species clinoptilolite, chabazite and mordenite[1]. Thomsonite-Ca does not appear on that short list.\n\nWhat demand exists is **lapidary and decorative**. Lake Superior beach nodules are worked into cabochons — domed, polished gemstones cut from radial pebbles with concentric pink, green and white banding. The pieces are small (most less than a quarter of an inch across) and opaque, but their banding is unlike any other Great Lakes stone[2]. A specialist trade still operates from Grand Marais, Minnesota, where the Thomsonite Beach Inn and a handful of nearby jewellers buy, cut and sell the local material[3]. Radial Indian specimens from the Deccan Trap basalts of Gujarat and Faroese spherules also reach museum cabinets and high-end specimen collections[4].\n\nThe remaining demand is scientific. Thomsonite-Ca is a classic low-temperature alteration mineral in the gas cavities — **amygdales**, almond-shaped holes left by trapped vapour — of weathered basaltic lava flows[5]. Its presence, alongside other zeolites in the same cavities, helps petrologists read the burial-and-heating history of a basalt province. Each zeolite has its own narrow stability window, and the assemblage that survives tells the petrologist how hot the rock got."]