[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1340":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":15,"elements":16,"sigelements":22,"key_elements":23,"impurities":24,"cim":25,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":29,"discovery_year":30,"strunz10ed1":31,"strunz10ed2":32,"strunz10ed3":33,"strunz10ed4":34,"dana8ed1":35,"dana8ed2":36,"dana8ed3":37,"dana8ed4":38,"csystem":39,"cclass":40,"spacegroup":41,"spacegroupset":42,"a":43,"b":44,"c":45,"alpha":42,"beta":46,"gamma":42,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":47,"csmetamict":14,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":48,"tlform":11,"hmin":40,"hmax":49,"hardtype":11,"vhnmin":42,"vhnmax":42,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":50,"dmeas2":51,"dcalc":51,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":52,"lustretype":53,"commentluster":11,"diapheny":54,"streak":55,"colour":56,"commentcolor":57,"colors":58,"streak_colors":65,"luminescence":11,"uv":66,"cleavage":11,"cleavagetype":11,"fracturetype":67,"tenacity":68,"commentbreak":11,"opticaltype":69,"opticalsign":70,"opticalalpha":71,"opticalalpha2":71,"opticalalphaerror":11,"opticalbeta":72,"opticalbeta2":73,"opticalbetaerror":11,"opticalgamma":74,"opticalgamma2":74,"opticalgammaerror":11,"opticalomega":42,"opticalomega2":42,"opticalomegaerror":11,"opticalepsilon":42,"opticalepsilon2":42,"opticalepsilonerror":11,"opticaln":42,"opticaln2":42,"opticalnerror":11,"optical2vcalc":75,"optical2vcalc2":76,"optical2vcalcerror":11,"optical2vmeasured":76,"optical2vmeasured2":76,"optical2vmeasurederror":11,"rimin":77,"rimax":78,"opticaldispersion":79,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":80,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":11,"otheroccurrence":81,"type_specimen_store":82,"description_short":83,"aboutname":84,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":85,"reviewed_at":11,"variety_of":11,"varieties":86,"group_members":91,"associates":98,"confused_with":155,"type_localities":156,"occurrence_total":163,"citations":164,"images":273,"structures":522,"synonyms":549,"language_names":554,"wikidata_qid":673,"texts":674},1340,"1:1:1340:2","f1e58e96-bf09-46b7-89c8-b80b5fd307d1","Datolite","Dat",0,"mineral",null,50362,16144,false,"CaB(SiO\u003Csub>4\u003C\u002Fsub>)(OH)",[17,18,19,20,21],"Ca","Si","B","O","H",[17,18,19,20,21],[19],"Mn,Mg,Al,Fe","17.5.10",[27,28],"APPROVED","GRANDFATHERED",1806,"1805","9","A","J","20","54","2","1a","1","Monoclinic",5,14,"0","9.62","7.6","4.84","90.15",4,"Short prismatic, lenticular, botryoidal, granular to compact, cryptocrystalline.",5.5,"2.96","3.00","Vitreous","Vitreous,Resinous","Transparent,Translucent,Opaque","White","White, greyish, pale green, red, yellow, pink, etc.","Commonly with a greenish tinge",[59,60,61,62,63,64],"white","gray","green","red","yellow","pink",[59],"Commonly fluoresces blue under SW UV.","Irregular\u002FUneven,Conchoidal","brittle","Biaxial","-","1.626","1.653","1.654","1.67","72","74",1.626,1.67,"weak r > v","Y = b; Z ∧ c = -1° to -4°.","Secondary mineral in mafic igneous rocks. Geodes in tuff, limestone skarns, serpentinites, schists, ore veins.","Museum für Naturkunde, Humboldt-Universität-Berlin, Germany, number 2007-02502.\r\nIn the official IMA type material list, there is a question mark associated with this entry.","Datolite is the second described mineral in the gadolinite supergroup. \r\n\r\nThe structure of datolite consists of sheets of four- and eight-membered rings of corner-sharing, alternating (HBO4) and (SiO4) tetrahedra, classifying it as a phyllo-borosilica...","Named in 1806 by the Danish-Norwegian geologist, Jens Esmark (1762-1839) from the Greek δατεῖσθαι for \"to divide\", in reference to the granular texture of massive varieties. In a letter (17 January 1806) to professor Morten Thrane Brünnich, Copenhagen, Denmark Esmark first presented the mineral including an uncomplete chemical analysis. The letter was read at a meeting in the \u003Cem>Naturhistorie-Selskabet\u003C\u002Fem> [Natural History Society]. It was however Klaproth (1806) that first published a description of the new mineral in the \u003Cem>Journal de Chemie\u003C\u002Fem>. Later, Hausmann (1810) gave a more thorough description both of the physical and crystallographic data.","2026-01-10 18:01:32",[87],{"id":88,"name":89,"entrytype":90,"csystem":11,"ima_formula":11,"mindat_formula":11,"hmin":11,"hmax":11,"dmeas":42,"dcalc":42,"primary_image_id":11},734,"Botryolite",2,[92],{"id":93,"name":94,"entrytype":9,"csystem":39,"ima_formula":95,"mindat_formula":96,"hmin":40,"hmax":49,"dmeas":97,"dcalc":42,"primary_image_id":11},1926,"Homilite","Ca\u003Csub>2\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>B\u003Csub>2\u003C\u002Fsub>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>","Ca\u003Csub>2\u003C\u002Fsub>(Fe\u003Csup>2+\u003C\u002Fsup>,Mg)B\u003Csub>2\u003C\u002Fsub>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>","3.34",[99,109,119,128,137,147],{"id":100,"name":101,"entrytype":9,"csystem":102,"ima_formula":103,"mindat_formula":104,"hmin":105,"hmax":105,"dmeas":106,"dcalc":107,"primary_image_id":108},859,"Calcite","Trigonal","Ca(CO\u003Csub>3\u003C\u002Fsub>)","CaCO\u003Csub>3\u003C\u002Fsub>",3,"2.7102","2.711",4401,{"id":110,"name":111,"entrytype":9,"csystem":112,"ima_formula":113,"mindat_formula":113,"hmin":114,"hmax":115,"dmeas":116,"dcalc":117,"primary_image_id":118},1218,"Danburite","Orthorhombic","CaB\u003Csub>2\u003C\u002Fsub>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>8\u003C\u002Fsub>",7,7.5,"2.93","2.99",6828,{"id":120,"name":121,"entrytype":9,"csystem":39,"ima_formula":122,"mindat_formula":123,"hmin":124,"hmax":47,"dmeas":125,"dcalc":126,"primary_image_id":127},6988,"Heulandite-Ca","(Ca,Na,K)\u003Csub>5\u003C\u002Fsub>(Si\u003Csub>27\u003C\u002Fsub>Al\u003Csub>9\u003C\u002Fsub>)O\u003Csub>72\u003C\u002Fsub> · 26H\u003Csub>2\u003C\u002Fsub>O","(Ca,Na)\u003Csub>5\u003C\u002Fsub>(Si\u003Csub>27\u003C\u002Fsub>Al\u003Csub>9\u003C\u002Fsub>)O\u003Csub>72\u003C\u002Fsub>·26H\u003Csub>2\u003C\u002Fsub>O",3.5,"2.1","2.17",58939,{"id":129,"name":130,"entrytype":9,"csystem":131,"ima_formula":132,"mindat_formula":133,"hmin":90,"hmax":134,"dmeas":135,"dcalc":136,"primary_image_id":11},3150,"Pennantite","Triclinic","Mn\u003Csup>2+\u003C\u002Fsup>\u003Csub>5\u003C\u002Fsub>Al(Si\u003Csub>3\u003C\u002Fsub>Al)O\u003Csub>10\u003C\u002Fsub>(OH)\u003Csub>8\u003C\u002Fsub>","Mn\u003Csup>2+\u003C\u002Fsup>\u003Csub>5\u003C\u002Fsub>Al(AlSi\u003Csub>3\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>)(OH)\u003Csub>8\u003C\u002Fsub>",2.5,"2.89","3.18",{"id":138,"name":139,"entrytype":9,"csystem":112,"ima_formula":140,"mindat_formula":141,"hmin":142,"hmax":143,"dmeas":144,"dcalc":145,"primary_image_id":146},3277,"Prehnite","Ca\u003Csub>2\u003C\u002Fsub>Al(Si\u003Csub>3\u003C\u002Fsub>Al)O\u003Csub>10\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","Ca\u003Csub>2\u003C\u002Fsub>Al\u003Csub>2\u003C\u002Fsub>Si\u003Csub>3\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>",6,6.5,"2.8","2.9",19927,{"id":148,"name":149,"entrytype":9,"csystem":39,"ima_formula":150,"mindat_formula":151,"hmin":134,"hmax":134,"dmeas":152,"dcalc":153,"primary_image_id":154},3770,"Stevensite","(Ca,Na)\u003Csub>x\u003C\u002Fsub>Mg\u003Csub>3-y\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","(Ca,Na)\u003Csub>x\u003C\u002Fsub>Mg\u003Csub>3-x\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub>","2.15","2.07",22839,[],[157],{"id":158,"txt":159,"latitude":160,"longitude":161,"country":162},33976,"Nødebro Mine (Nøddebro), Øyestad, Arendal, Agder, Norway",58.43518,8.7047,"Norway",504,[165,168,171,175,179,183,187,191,195,200,205,210,215,219,223,228,232,236,240,244,249,254,258,263,268],{"id":166,"year":11,"html":167,"doi":11},16647564,"Marinoni, L., Caucia, F., Gilio, M., Scacchetti, M. (2023): Evaluation of the Gemological Properties of Datolites from the Campotrera Deposit in the Northern Apennines (Italy). Minerals, 13, 1057.",{"id":169,"year":29,"html":170,"doi":11},15972101,"Klaproth, M.H. (1806): Chemische Untersuchung des Datoliths. Neues allgemeines Journal der Chemie. 6, 107-110",{"id":172,"year":173,"html":174,"doi":11},18301097,1807,"Klaproth, M. H. (1807) CLXIV. Untersuchung des Datoliths. In \u003Ci>Beiträge zur chemischen Kenntniss der Mineralkörper\u003C\u002Fi> Vol. 4. Rottmann. p.354-359.",{"id":176,"year":177,"html":178,"doi":11},16108113,1810,"Hausmann, J.F.L (1810) Bermerkungen über den Datolith, von der Nödebroe-Grube bei Arendal in Norwegen. Beiträge zur Naturkunde, 2, 59-67.",{"id":180,"year":181,"html":182,"doi":11},16108115,1906,"Kraus, E.H., Cook, C.W. (1906). Datolite from Westfield, Massachusetts. American Journal of Science, 22(127), 21.",{"id":184,"year":181,"html":185,"doi":186},10636321,"Anderson, C. (1906) Mineralogical notes. No. III. Axinite, petterdite, crocoite, and datolite. \u003Ci>Records of the Australian Museum\u003C\u002Fi>, 6. 133-144 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3853\u002Fj.0067-1975.6.1906.998'>doi:10.3853\u002Fj.0067-1975.6.1906.998\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Farchive.org\u002Fdownload\u002Fbiostor-52913\u002Fbiostor-52913.pdf' class='refpdflink'>\u003C\u002Fa>","10.3853\u002Fj.0067-1975.6.1906.998",{"id":188,"year":189,"html":190,"doi":11},518751,1919,"Shannon, Earl V. (1919) Famous mineral localities: The datolite locality near Westfield, Massachusetts. \u003Ci>American Mineralogist\u003C\u002Fi>,  4 (1) 5-6 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM4\u002FAM4_5.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":192,"year":193,"html":194,"doi":11},16108117,1921,"Shannon, E.V. (1921). A crystallographic study of the datolite from Westfield, Massachusetts. Proceedings of the United States National Museum.",{"id":196,"year":197,"html":198,"doi":199},105213,1936,"Strunz, Hugo (1936) Datolith und Herderit. \u003Ci>Zeitschrift für Kristallographie, Mineralogie und Petrographie\u003C\u002Fi>,  93 (1-6). 146-150 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1936.93.1.146'>doi:10.1524\u002Fzkri.1936.93.1.146\u003C\u002Fa>","10.1524\u002Fzkri.1936.93.1.146",{"id":201,"year":202,"html":203,"doi":204},464391,1953,"Ito, T., Mori, H. (1953) The crystal structure of datolite. \u003Ci>Acta Crystallographica\u003C\u002Fi>,  6 (1) 24-32 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0365110x53000041'>doi:10.1107\u002Fs0365110x53000041\u003C\u002Fa>","10.1107\u002Fs0365110x53000041",{"id":206,"year":207,"html":208,"doi":209},6005,1966,"Dearman, W. R. (1966) Datolite from Meldon, Okehampton, Devonshire. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>,  35 (275) 1017-1018 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1966.035.275.16'>doi:10.1180\u002Fminmag.1966.035.275.16\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_35\u002F35-275-1017.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1966.035.275.16",{"id":211,"year":212,"html":213,"doi":214},107501,1967,"Pant, A. K., Cruickshank, D. W. J. (1967) A reconsideration of the structure of datolite, CaBSiO4(OH). \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  125 (1-6). 286-297 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1967.125.125.286'>doi:10.1524\u002Fzkri.1967.125.125.286\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fzk\u002Fvol125\u002FZK125_286.pdf' class='refpdflink'>\u003C\u002Fa>","10.1524\u002Fzkri.1967.125.125.286",{"id":216,"year":217,"html":218,"doi":11},16108121,1968,"Yagi, Kenzo, Sato, Fumio (1968) Datolite from Furano Mine, Hokkaido. \u003Ci>Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy\u003C\u002Fi>,  14 (1). 97-102 \u003Ca target='_blank' href='https:\u002F\u002Feprints.lib.hokudai.ac.jp\u002Fdspace\u002Fbitstream\u002F2115\u002F35976\u002F1\u002F14%281%29_97-102.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":220,"year":221,"html":222,"doi":11},16108122,1970,"Bershov, L.V., Martiros, V.O. (1970). Point defects in borosilicates danburite and datolite. SOVIET PHYSICS CRYSTALLOGRAPHY, USSR, 14(5), 823.",{"id":224,"year":225,"html":226,"doi":227},215981,1972,"Sugitani, Y., Watanabe, M., Nagashima, K. (1972) The positions of the hydrogen atoms in datolite as determined by nuclear magnetic resonance. \u003Ci>Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry\u003C\u002Fi>,  28 (1) 326-327 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0567740872002316'>doi:10.1107\u002Fs0567740872002316\u003C\u002Fa>","10.1107\u002Fs0567740872002316",{"id":229,"year":230,"html":231,"doi":11},526139,1973,"Foit, Franklin F., Phillips, M. W., Gibbs, and G. V. (1973) A refinement of the crystal structure of datolite, CaBSiO4(OH) \u003Ci>American Mineralogist\u003C\u002Fi>,  58 (9-10) 909-914 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM58\u002FAM58_909.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":233,"year":234,"html":235,"doi":11},15418311,1996,"Grew, Edward S.; Anovitz, Lawrence M. - \u003Ci>Eds.\u003C\u002Fi> (1996) Boron - Mineralogy, Petrology and Geochemistry. \u003Ci>Reviews in Mineralogy\u003C\u002Fi> Vol. 33. Mineralogical Society of America p.862",{"id":237,"year":238,"html":239,"doi":11},16108125,1998,"Belokoneva, E.L., Goryunova, A.N. (1998). Electron density and chemical bonding in natural borosilicate datolite from precision X-ray diffraction data. Russian journal of inorganic chemistry, 43(12), 1915-1927.",{"id":241,"year":242,"html":243,"doi":11},16963914,2001,"(2001) Datolite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fdatolite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":245,"year":246,"html":247,"doi":248},30291,2003,"Rosemeyer, Tom (2003) The Occurrence of Porcelaneous Datolite in Michigan's Lake Superior Copper District. \u003Ci>Rocks & Minerals\u003C\u002Fi>,  78 (3) 170-188 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1080\u002F00357529.2003.9926717'>doi:10.1080\u002F00357529.2003.9926717\u003C\u002Fa>","10.1080\u002F00357529.2003.9926717",{"id":250,"year":251,"html":252,"doi":253},30469,2005,"Rosemeyer, Tom (2005) The Occurrence of Porcelaneous Datolite in Michigan's Lake Superior Copper District. \u003Ci>Rocks & Minerals\u003C\u002Fi>,  80 (3) 154-177 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3200\u002Frmin.80.3.154-177'>doi:10.3200\u002Frmin.80.3.154-177\u003C\u002Fa>","10.3200\u002Frmin.80.3.154-177",{"id":255,"year":256,"html":257,"doi":11},16001874,2006,"Bellatreccia, F., Cámara, F., Della Ventura, G. (2006): Datolite: a new occurrence in volcanic ejecta (Pitigliano, Toscana, Italy) and crystal-structure refinement. Rendiconti dell'Accademia Nazionale dei Lincei, Scienze Fisiche e Naturali, Serie 9, 17, 289-298.",{"id":259,"year":260,"html":261,"doi":262},187837,2007,"Ivanov, Yu. V., Belokoneva, E. L. (2007) Multipole refinement and electron density analysis in natural borosilicate datolite using X-ray diffraction data. \u003Ci>Acta Crystallographica Section B Structural Science\u003C\u002Fi>,  63 (1) 49-55 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0108768106041681'>doi:10.1107\u002Fs0108768106041681\u003C\u002Fa>","10.1107\u002Fs0108768106041681",{"id":264,"year":265,"html":266,"doi":267},30932,2010,"Cook, Robert B. (2010) Connoisseur's Choice: Datolite, Dalnegorsk, Primorskiy Kray, Russia. \u003Ci>Rocks & Minerals\u003C\u002Fi>,  85 (4). 338-345 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1080\u002F00357529.2010.492658'>doi:10.1080\u002F00357529.2010.492658\u003C\u002Fa>","10.1080\u002F00357529.2010.492658",{"id":269,"year":270,"html":271,"doi":272},129646,2017,"Bačík, Peter, Miyawaki, Ritsuro, Atencio, Daniel, Cámara, Fernando, Fridrichová, Jana (2017) Nomenclature of the gadolinite supergroup. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  29 (6) 1067-1082 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002Fejm\u002F2017\u002F0029-2659'>doi:10.1127\u002Fejm\u002F2017\u002F0029-2659\u003C\u002Fa>","10.1127\u002Fejm\u002F2017\u002F0029-2659",[274,284,291,301,307,315,320,328,336,344,352,359,368,377,384,391,398,404,411,418,424,433,443,451,458,467,474,481,490,498,506,515],{"id":275,"source_url":276,"license_code":277,"credit_html":278,"title":279,"description":280,"author":281,"original_width":282,"original_height":283},6856,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1735197","Public domain","Vassil, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1735197\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite 1.jpg","Blue datolite from Russia.","Vassil",1070,731,{"id":285,"source_url":286,"license_code":287,"credit_html":288,"title":7,"description":11,"author":11,"original_width":289,"original_height":290},29582,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F119134","CC BY 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F119134\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",1000,666,{"id":292,"source_url":293,"license_code":294,"credit_html":295,"title":296,"description":297,"author":298,"original_width":299,"original_height":300},6857,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148735","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148735\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-165812.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCharcas\" class=\"extiw\" title=\"en:Charcas\">Charcas\u003C\u002Fa>, Municipio de Charcas, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Luis_Potos%C3%AD\" class=\"extiw\" title=\"en:San Luis Potosí\">San Luis Potosí\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2296.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 9.0 x 7.5 x 5.5 cm.\u003C\u002Fdd>\n\u003Cdd>Glassy and lustrous, light pastel-green datolite crystals cover this vuggy, 3-dimensional, mounded matrix on this excellent and showy specimen from Charcas, Mexico. The datolite crystals look like gemstones on this very nearly pristine piece from the Dave Stoudt Collection. Old material.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",600,463,{"id":302,"source_url":303,"license_code":304,"credit_html":305,"title":7,"description":11,"author":11,"original_width":289,"original_height":306},29583,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F65629","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\u002F65629\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",521,{"id":308,"source_url":309,"license_code":294,"credit_html":310,"title":311,"description":312,"author":298,"original_width":313,"original_height":314},6858,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10450420","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10450420\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-k202c.jpg","\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: miniature, 4.2 x 3.8 x 2.2 cm\n\u003Cdl>\u003Cdt>Datolite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A rare pink datolite, fairly large for the material produced, and with as intense color as I have ever sene in sucha specimen. They were very uncommon, from the mid 1980s.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",400,364,{"id":316,"source_url":317,"license_code":304,"credit_html":318,"title":7,"description":11,"author":11,"original_width":289,"original_height":319},29584,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F214191","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F214191\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",980,{"id":321,"source_url":322,"license_code":294,"credit_html":323,"title":324,"description":325,"author":298,"original_width":326,"original_height":327},36639,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10140713","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10140713\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-121765.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Delaware Mine (Delaware Conglomerate Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDelaware\" class=\"extiw\" title=\"en:Delaware\">Delaware\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKeweenaw_County,_Michigan\" class=\"extiw\" title=\"en:Keweenaw County, Michigan\">Keweenaw County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMichigan\" class=\"extiw\" title=\"en:Michigan\">Michigan\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-10530.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.8 x 2.7 x 1.1 cm\u003C\u002Fdd>\n\u003Cdd>(largest). A showy and excellent matched pair of a sawed and polished datolite nodule from the Delaware Mine of Michigan’s Copper Country. The slices have high lustre, a nice porcelaneous texture and the gray rind is very attractive with the copper-included orange-red interior.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",550,344,{"id":329,"source_url":330,"license_code":294,"credit_html":331,"title":332,"description":333,"author":298,"original_width":334,"original_height":335},6859,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10450435","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10450435\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-k209a.jpg","\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: miniature, 3.3 x 3.0 x 1.8 cm\n\u003Cdl>\u003Cdt>Datolite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A beautiful specimen like no other I have seen from here, with a not so subtle lavender hue to it! Wonderful, curving crystals had us fooled it was calcite...\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",800,699,{"id":337,"source_url":338,"license_code":294,"credit_html":339,"title":340,"description":341,"author":298,"original_width":342,"original_height":343},36640,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142312","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142312\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-136253.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuincy_Mine\" class=\"extiw\" title=\"en:Quincy Mine\">Quincy Mine\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHancock\" class=\"extiw\" title=\"en:Hancock\">Hancock\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHoughton_County,_Michigan\" class=\"extiw\" title=\"en:Houghton County, Michigan\">Houghton County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMichigan\" class=\"extiw\" title=\"en:Michigan\">Michigan\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3842.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.7 x 2.3 x 1.4 cm\u003C\u002Fdd>\n\u003Cdd>(largest). A showy and excellent sawed and polished datolite nodule pair from the famous Quincy Mine of Michigan’s Copper Country. The slices have high lustre, a nice porcelaneous texture and the thin gray rind is very attractive around the solid copper-included rust-red interior. Quality is off the charts.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",499,292,{"id":345,"source_url":346,"license_code":294,"credit_html":347,"title":348,"description":349,"author":298,"original_width":350,"original_height":351},6860,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10462558","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10462558\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-1116-02f.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCharcas\" class=\"extiw\" title=\"en:Charcas\">Charcas\u003C\u002Fa>, Municipio de Charcas, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Luis_Potos%C3%AD\" class=\"extiw\" title=\"en:San Luis Potosí\">San Luis Potosí\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2296.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: cabinet, 13.9 x 10.1 x 7.2 cm\n\u003Cdl>\u003Cdt>Datolite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Romero particularly prized these datolites, which before the discovery of (somewhat different styled) crystals from Dalnegorsk, were surely the worlds best of species. Even still today, they have amazing symmetry and geometry that are not often equaled. He had 3 in the collection. This is the largest of them, the only cabinet sized specimen. It is a complete mound of geometric, translucent, seafoam-green crystals of datolite, measuring to about 2 inches across. For crystallography, these old datolites really are highly desirable, but so seldom seen. In great condition, and with a nice accent of pyrite! An elegant example of this species, from a locale that most folks simple have never seen one from. This specimen from the Dr Miguel Romero collection was on loan exhibition to the University of Arizona Museum for over a decade, until my purchase of this collection in 2008. It was on display in special cases at the museum. Comes with custom lucite base already made for the specimen.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",1732,1782,{"id":353,"source_url":354,"license_code":294,"credit_html":355,"title":356,"description":357,"author":298,"original_width":358,"original_height":342},36641,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149137","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149137\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-168085.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Bor Pit (Boron Pit; Bor Quarry), Dal'negorsk B deposit, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4639.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.7 x 5.7 x 1.8 cm.\u003C\u002Fdd>\n\u003Cdd>A very nice, well-terminated partially gemmy complex crystal of Datolite from Dal'negorsk. The luster is superb, as is the mint-green color. There are dozens of small Quartz crystals populating the surface, which add a great deal of interest to the Datolite. A very fine Datolite from classic mining here in the 1980s-early 90s. Ex. Charlie Key.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",401,{"id":360,"source_url":361,"license_code":294,"credit_html":362,"title":363,"description":364,"author":365,"original_width":366,"original_height":367},6861,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13823152","Didier Descouens, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13823152\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite Roncari quarry.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa> \n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality : Roncari quarry (Tilcon quarry), East Granby, Hartford Co., Connecticut, USA\u003C\u002Fdd>\n\u003Cdd>Size : 4.2x4.0x3.6 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Didier Descouens",4387,4095,{"id":369,"source_url":370,"license_code":277,"credit_html":371,"title":372,"description":373,"author":374,"original_width":375,"original_height":376},6862,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=29003222","Gianfranco Ciccolini, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=29003222\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-467414.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Futa Pass, Firenzuola, Florence Province, Tuscany, Italy\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> Beautiful crystal of 6 mm, transparent. Collection and photo of Gianfranco Ciccolini\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Gianfranco Ciccolini",1024,695,{"id":378,"source_url":379,"license_code":294,"credit_html":380,"title":381,"description":382,"author":298,"original_width":299,"original_height":383},36644,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10152900","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10152900\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-180654.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCharcas\" class=\"extiw\" title=\"en:Charcas\">Charcas\u003C\u002Fa>, Municipio de Charcas, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Luis_Potos%C3%AD\" class=\"extiw\" title=\"en:San Luis Potosí\">San Luis Potosí\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2296.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 9.3 x 6.4 x 2.2 cm.\u003C\u002Fdd>\n\u003Cdd>This specimen features translucent datolite crystals of a very light green, with a high luster and sharp, reflective faces. Ex. Dave Stoudt Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",460,{"id":385,"source_url":386,"license_code":294,"credit_html":387,"title":388,"description":389,"author":298,"original_width":390,"original_height":334},36647,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10419941","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10419941\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-rom25c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCharcas\" class=\"extiw\" title=\"en:Charcas\">Charcas\u003C\u002Fa>, Municipio de Charcas, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Luis_Potos%C3%AD\" class=\"extiw\" title=\"en:San Luis Potosí\">San Luis Potosí\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2296.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 6.2 x 5.3 x 2.8 cm\n\u003Cdl>\u003Cdt>Datolite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Perched on a sliver of sphalerite and a smaller crystal of datolite is a superb, well formed, translucent, sea-foam-green crystal of datolite, measuring 4.5 cm across. Alternating faces of matte luster and glassy luster add to the sharp form of this specimen. For crystallography, these old datolites really are highly desirable, but so seldom seen. Romero had 2 of the best I know of, this and another, with sharp crystal habit and excellent aesthetics compared to the usual jumbled plates which came out (perhaps 20 years or more ago). An elegant example of this species, from a locale that most folks simple have never seen one from. Ex. Dr. Miguel Romero Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",760,{"id":392,"source_url":393,"license_code":294,"credit_html":394,"title":395,"description":396,"author":298,"original_width":397,"original_height":313},36648,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10420344","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10420344\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-4jg45c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2635.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 4.5 x 2.9 x 2.5 cm\n\u003Cdl>\u003Cdt>Datolite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Beautiful complex crystals with great clarity and superb luster. Datolites are more commonly equidimensional, so these complex tabular crystals are very attractive and unusual. There is some minor edge wear, but it is hardly noticeable in the sharp brightness of these crystals. 4.5 x 2.9 x 2.5 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",338,{"id":399,"source_url":400,"license_code":294,"credit_html":401,"title":402,"description":396,"author":298,"original_width":313,"original_height":403},36649,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10420346","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10420346\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-4jg45b.jpg",326,{"id":405,"source_url":406,"license_code":294,"credit_html":407,"title":408,"description":409,"author":298,"original_width":334,"original_height":410},36650,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10456376","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10456376\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-pas-179a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FIsle_Royale_National_Park\" class=\"extiw\" title=\"en:Isle Royale National Park\">Isle Royale National Park\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLake_Superior\" class=\"extiw\" title=\"en:Lake Superior\">Lake Superior\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKeweenaw_County,_Michigan\" class=\"extiw\" title=\"en:Keweenaw County, Michigan\">Keweenaw County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMichigan\" class=\"extiw\" title=\"en:Michigan\">Michigan\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3846.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: cabinet, 13.9 x 9.4 x 5.5 cm\n\u003Cdl>\u003Cdt>Datolite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is from a National Park and no collecting is allowed TODAY, making it probably one of the few pieces out there in private hands. This is 1069 grams (2.4 pounds or so) of solid, carving-quality material of classic pearl-white datolite from upper Michigan. I have not seen such big chunks around, from other mines I am more familiar with. One imagines most of it was carved or ground up for industrial use. From the noted Clarence S. Bement (1843-1923) Collection. Given the early accession number, and the future fate of his collection going to the AMNH in the 1900s, this was certainly obtained from him personally before his death and the purchase (followed by donation elsewhere) of the rest of his collection by financier JP Morgan. NOTE THIS IS A HANDWRITTEN LABEL IN BEMENT'S OWN HAND (as compared to labels shown in the Mineralogical Record label archive: click here\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",524,{"id":412,"source_url":413,"license_code":294,"credit_html":414,"title":415,"description":349,"author":298,"original_width":416,"original_height":417},36651,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10462560","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10462560\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-1116-02a.jpg",1612,1800,{"id":419,"source_url":420,"license_code":294,"credit_html":421,"title":422,"description":349,"author":298,"original_width":423,"original_height":417},36652,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10462563","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10462563\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-1116-02b.jpg",1593,{"id":425,"source_url":426,"license_code":294,"credit_html":427,"title":428,"description":429,"author":430,"original_width":431,"original_height":432},36653,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=22160735","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=22160735\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-436096.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Kuhlenberg quarry, Silbach, Winterberg, Sauerland, North Rhine-Westphalia, Germany\u003C\u002Fdd>\n\u003Cdd>Field of view 1.5 cm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",808,655,{"id":434,"source_url":435,"license_code":436,"credit_html":437,"title":438,"description":439,"author":440,"original_width":441,"original_height":442},36654,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=25142245","CC0 1.0","Daderot, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=25142245\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite, Lane Quarry, Westfield, Massachusetts - Springfield Science Museum - Springfield, MA - DSC03408.JPG","Exhibit in the Springfield Science Museum, 21 Edwards Street, Springfield, Massachusetts, USA. The museum permitted photography without restriction.","Daderot",4320,3240,{"id":444,"source_url":445,"license_code":294,"credit_html":446,"title":447,"description":448,"author":298,"original_width":449,"original_height":450},36638,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10140335","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10140335\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-Quartz-120832.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Bor Pit (Boron Pit; Bor Quarry), Dal'negorsk B deposit, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4639.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 9.6 x 7.5 x 3.4 cm.\u003C\u002Fdd>\n\u003Cdd>Exceptional cluster of sharp and partially gemmy Datolite crystals up to an amazing 2.5 cm on edge. The Datolite begins as a massive translucent plate, grading into well-formed crystal faces along the gemmy surface. The color is a fine mint green, and the luster is absolutely first-rate. The surface is also populated with numerous terminated quartz crystals up to 1 cm.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",434,500,{"id":452,"source_url":453,"license_code":294,"credit_html":454,"title":455,"description":456,"author":298,"original_width":299,"original_height":457},36642,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149420","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149420\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-Danburite-Chalcopyrite-169724.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDanburite\" class=\"extiw\" title=\"en:Danburite\">Danburite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChalcopyrite\" class=\"extiw\" title=\"en:Chalcopyrite\">Chalcopyrite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCharcas\" class=\"extiw\" title=\"en:Charcas\">Charcas\u003C\u002Fa>, Municipio de Charcas, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Luis_Potos%C3%AD\" class=\"extiw\" title=\"en:San Luis Potosí\">San Luis Potosí\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2296.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 8.1 x 6.4 x 4.4 cm.\u003C\u002Fdd>\n\u003Cdd>From Charcas, a specimen of large, lustrous crystals of datolite, with crystals of white danburite and little golden chalcopyrites. The largest of the crystals measures over 4 cm in two directions! They have a light greenish-gray color; the faces SHINE. Ex. Dave Stoudt Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",483,{"id":459,"source_url":460,"license_code":304,"credit_html":461,"title":462,"description":463,"author":464,"original_width":465,"original_height":466},6863,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130755105","Kaethe17, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130755105\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolith-calcit.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa> and \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa> (Weight: 114.7 g) – Place of discovery: Theis, Villnöss valley, South tyrol, Trentino-Alto Adige (Trentino-South Tyrol), Italy","Kaethe17",5477,3651,{"id":468,"source_url":469,"license_code":294,"credit_html":470,"title":471,"description":472,"author":298,"original_width":299,"original_height":473},36645,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161453","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161453\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hausmannite-Datolite-215535.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHausmannite\" class=\"extiw\" title=\"en:Hausmannite\">Hausmannite\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: 4.3 x 3.0 x 2.7 cm.\u003C\u002Fdd>\n\u003Cdd>These are nice, sharp, jet-black hausmannite crystals arranged in a beautiful pagoda-like structure - but even better is the fact that they are sitting in pink datolite. The contrast is stunning, and totally unexpected. Ex. Charlie Key.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",486,{"id":475,"source_url":476,"license_code":294,"credit_html":477,"title":478,"description":479,"author":298,"original_width":299,"original_height":480},36646,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10170215","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10170215\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-Chalcopyrite-266284.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChalcopyrite\" class=\"extiw\" title=\"en:Chalcopyrite\">Chalcopyrite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCharcas\" class=\"extiw\" title=\"en:Charcas\">Charcas\u003C\u002Fa>, Municipio de Charcas, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Luis_Potos%C3%AD\" class=\"extiw\" title=\"en:San Luis Potosí\">San Luis Potosí\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2296.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 8.4 x 5.4 x 3.8 cm.\u003C\u002Fdd>\n\u003Cdd>Sharp, glassy and lustrous, light pastel-green datolite crystals to 1.5 cm cover the matrix on this excellent specimen from Charcas, Mexico. The iridescent golden and bronzy chalcopyrite crystals are a very nice accent. The datolite crystals look like gemstones on this very nearly pristine piece from the Dave Stoudt Collection. Old material.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",474,{"id":482,"source_url":483,"license_code":304,"credit_html":484,"title":485,"description":486,"author":487,"original_width":488,"original_height":489},36655,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=53059438","SKas, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=53059438\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Датолит-кальцит.jpg","Datolite, Calcite. From the Dalnegorsk deposit, in Primorsky Krai, Russian Federation.","SKas",2819,2630,{"id":491,"source_url":492,"license_code":304,"credit_html":493,"title":494,"description":495,"author":487,"original_width":496,"original_height":497},36656,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=53091057","SKas, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=53091057\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Кристаллы кварца на датолите и гранатовая щётка.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa> and \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGarnet\" class=\"extiw\" title=\"en:Garnet\">Garnet\u003C\u002Fa>",2941,2600,{"id":499,"source_url":500,"license_code":294,"credit_html":501,"title":502,"description":503,"author":298,"original_width":504,"original_height":505},20429,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10168676","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10168676\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Quartz-Datolite-Quartz-258284.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Bor Pit (Boron Pit; Bor Quarry), Dal'negorsk B deposit, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4639.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 8.8 x 7.8 x 6.8 cm.\u003C\u002Fdd>\n\u003Cdd>A very fine and interesting, intergrown, mounded cluster of sharp datolite and \"beta\" quartz crystals nearly totally coated with sparkly drusy quartz. Interestingly, some of the drusy quartz has a preferential brown color. Just a few of the crystals at the top of the piece are not fully coated with drusy quartz. This excellent piece is nearly complete-all-around and pristine. Highly representative and unusual combination material from this noted locale.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",612,750,{"id":507,"source_url":508,"license_code":294,"credit_html":509,"title":510,"description":511,"author":512,"original_width":513,"original_height":514},58458,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=153151049","Elena Ternovaja, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=153151049\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolith Hedenbergit, Dalnegorsk Russland.jpg","\u003Ca href=\"https:\u002F\u002Fde.wikipedia.org\u002Fwiki\u002FDatolith\" class=\"extiw\" title=\"de:Datolith\">Datolith\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fde.wikipedia.org\u002Fwiki\u002FHedenbergit\" class=\"extiw\" title=\"de:Hedenbergit\">Hedenbergit\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Gewicht: 1139 g\u003C\u002Fdd>\n\u003Cdd>Fundort: Dalnegorsk, Region Primorje, Ferner Osten, Russland\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Elena Ternovaja",4548,2768,{"id":516,"source_url":517,"license_code":294,"credit_html":518,"title":519,"description":520,"author":298,"original_width":299,"original_height":521},86623,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120315","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120315\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Datolite-Xonotlite-21182.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDatolite\" class=\"extiw\" title=\"en:Datolite\">Datolite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FXonotlite\" class=\"extiw\" title=\"en:Xonotlite\">Xonotlite\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>Very nice combination specimen of Datolite crystals and radial fibrous Xonotlite balls. Very aesthetic. 6 x 4 x 3.2 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",476,[523,529,534,540,544],{"id":524,"url":525,"label":526,"formula":527,"spacegroup":528,"year":265},3531,"\u002Fcif\u002F3531.cif","Rinaldi 2010","Ca B Si O5 H","P 1 21\u002Fc 1",{"id":530,"url":531,"label":532,"formula":527,"spacegroup":533,"year":260},3544,"\u002Fcif\u002F3544.cif","Ivanov 2007","P 1 21\u002Fa 1",{"id":535,"url":536,"label":537,"formula":538,"spacegroup":528,"year":539},3545,"\u002Fcif\u002F3545.cif","Perchiazzi 2004","Ca Si B O5 H",2004,{"id":541,"url":542,"label":543,"formula":538,"spacegroup":528,"year":230},3546,"\u002Fcif\u002F3546.cif","Foit 1973",{"id":545,"url":546,"label":547,"formula":527,"spacegroup":533,"year":548},3547,"\u002Fcif\u002F3547.cif","Pavlov 1959",1959,[550,551,552,553],"Datholite","Dystome Spar","Esmarkite (of Hausmann)","Humboldtite (of Levy)",[555,559,563,567,571,575,578,582,585,589,593,597,601,604,608,613,617,621,625,628,631,634,637,641,644,648,651,655,658,662,665,668],{"lang":556,"names":557},"ast",[558],"Datolita",{"lang":560,"names":561},"az",[562],"datolit",{"lang":564,"names":565},"be",[566],"даталіт",{"lang":568,"names":569},"ca",[570],"datolita",{"lang":572,"names":573},"de",[574],"Datolith",{"lang":576,"names":577},"es",[570],{"lang":579,"names":580},"et",[581],"datoliit",{"lang":583,"names":584},"eu",[558],{"lang":586,"names":587},"fa",[588],"داتولیت",{"lang":590,"names":591},"fi",[592],"Datoliitti",{"lang":594,"names":595},"fr",[596],"datolite",{"lang":598,"names":599},"he",[600],"דטוליט",{"lang":602,"names":603},"it",[596],{"lang":605,"names":606},"ja",[607],"ダトー石",{"lang":609,"names":610},"lt",[611,612],"Datolitai","Datolitas",{"lang":614,"names":615},"mk",[616],"Датолит",{"lang":618,"names":619},"nb",[620],"datolitt",{"lang":622,"names":623},"nl",[624],"datoliet",{"lang":626,"names":627},"nn",[620],{"lang":629,"names":630},"pl",[562],{"lang":632,"names":633},"pt",[570,596],{"lang":635,"names":636},"pt-br",[570,596],{"lang":638,"names":639},"ru",[640],"датолит",{"lang":642,"names":643},"sr",[640],{"lang":645,"names":646},"sv",[647],"Datolit",{"lang":649,"names":650},"tr",[562],{"lang":652,"names":653},"uk",[654],"датоліт",{"lang":656,"names":657},"uz",[647],{"lang":659,"names":660},"zh",[661],"硅硼钙石",{"lang":663,"names":664},"zh-cn",[661],{"lang":666,"names":667},"zh-hans",[661],{"lang":669,"names":670},"zh-hant",[671,672],"矽硼鈣石","矽硼钙石","Q415059",{"history":675,"applications":679},{"markdown":676,"model_version":677,"prompt_version":678,"reviewed_at":11},"The name *datolite* comes from a Greek verb meaning *to divide*. The Danish-Norwegian geologist Jens Esmark coined it in 1806, in allusion to the granular texture of massive varieties of the mineral[1]. Up close, those compact pieces split into tiny grains rather than the glassy crystals you see in well-formed specimens — the name describes what the rock does in the hand.\n\nEsmark had first identified the mineral the year before. On 17 January 1806 he laid it out in a letter to Morten Thrane Brünnich, a professor in Copenhagen, with an uncomplete chemical analysis attached[2]. The letter was read at a meeting of the *Naturhistorie-Selskabet* — the Natural History Society — and the new mineral was introduced to the scientific world there.\n\nThe first printed description appeared the same year, written by the chemist Klaproth in the *Journal de Chemie*[2]. Four years later, in 1810, Hausmann published a fuller account that added the physical and crystallographic data Esmark's first announcement had lacked[2]. Among the type localities recorded since are the diabases — coarse dark volcanic rocks — of the Connecticut River valley and Arendal, in Aust-Agder, Norway[3].\n\nA second chapter belongs to the copper country of northern Michigan. In the basalts around Lake Superior, datolite forms porcelaneous nodules — rounded lumps with a smooth, china-like surface. Many of them carry inclusions of native copper. The copper and the datolite were laid down together by hot mineral-rich water, in successive stages[4]. Cut faces show coloured banding in oranges, reds and yellows, with bright copper dendrites running through the paler stone. The Quincy Mine on the Keweenaw Peninsula is among the historic workings that have yielded such pieces[5]. Michigan datolite remains one of the most recognisable American collector materials.","claude-opus-4-7","1.7.0",{"markdown":680,"model_version":677,"prompt_version":678,"reviewed_at":11},"Datolite is a calcium boron silicate, and in one corner of the world it is mined as a boron ore. The Dalnegorsk deposit sits in Russia's Primorsky Krai on the Pacific coast. It is the largest of its kind in Russia and Southeast Asia[1]. The on-site processing plant turns the ore into boric acid in two commercial grades. It also produces calcium borate, datolite concentrate, and other boron compounds for downstream industry[1]. It is the only producer of high-quality boron compounds in Russia working from its own raw material base[1].\n\nThat operation is a regional player rather than a world supplier. Datolite is not the principal world ore for boron; that role belongs to other borate minerals. Its place in the global picture comes from the fact that the Dalnegorsk deposit is large enough to anchor Russian domestic demand[1].\n\nThe mineral has a second working life as a lapidary stone — material cut and polished for ornament rather than faceted as a gem. The nodules from the Lake Superior copper country of Michigan yield cabochons (domed, polished stones without facets) up to several ounces in weight[2]. Sliced nodules can run to about 15 cm (six inches) across[2]. Cutting them is awkward: hardness varies inside a single nodule, and the copper inclusions tear under the saw[2]. The reward is a polish that brings out peach, pink and red banding, often shot through with bright copper dendrites[2]. Faceted and cabbed datolites are uncommon enough that you are more likely to find them in mineral collections than in jewellery[2].\n\nBeyond those two niches, the mineral is essentially a collector specimen. Sharp glassy crystals from Dalnegorsk are prized for their form and frequently surface on the specimen market[3]. They reach buyers through dealers rather than industry, and museums hold them as representatives of the species."]