[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:624":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":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":36,"dana8ed4":37,"csystem":38,"cclass":39,"spacegroup":40,"spacegroupset":41,"a":42,"b":41,"c":43,"alpha":41,"beta":41,"gamma":41,"aerror":11,"berror":11,"cerror":44,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":45,"csmetamict":14,"commentcrystal":11,"twinning":46,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":47,"tlform":11,"hmin":48,"hmax":49,"hardtype":11,"vhnmin":41,"vhnmax":41,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":50,"dmeas2":50,"dcalc":51,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":52,"commentluster":11,"diapheny":53,"streak":11,"colour":54,"commentcolor":11,"colors":55,"streak_colors":11,"luminescence":11,"uv":61,"cleavage":62,"cleavagetype":63,"fracturetype":64,"tenacity":11,"commentbreak":11,"opticaltype":65,"opticalsign":66,"opticalalpha":41,"opticalalpha2":41,"opticalalphaerror":11,"opticalbeta":41,"opticalbeta2":41,"opticalbetaerror":11,"opticalgamma":41,"opticalgamma2":41,"opticalgammaerror":11,"opticalomega":67,"opticalomega2":68,"opticalomegaerror":11,"opticalepsilon":69,"opticalepsilon2":70,"opticalepsilonerror":11,"opticaln":41,"opticaln2":41,"opticalnerror":11,"optical2vcalc":41,"optical2vcalc2":41,"optical2vcalcerror":11,"optical2vmeasured":41,"optical2vmeasured2":41,"optical2vmeasurederror":11,"rimin":71,"rimax":72,"opticaldispersion":11,"opticalpleochroism":73,"opticalpleochorismdesc":74,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":75,"industrial":11,"occurrence":11,"otheroccurrence":11,"type_specimen_store":76,"description_short":77,"aboutname":78,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":79,"reviewed_at":11,"variety_of":11,"varieties":80,"group_members":81,"associates":110,"confused_with":111,"type_localities":112,"occurrence_total":119,"citations":120,"images":294,"structures":735,"synonyms":761,"language_names":763,"wikidata_qid":878,"texts":879},624,"1:1:624:0","a6074f57-ca6c-4fa0-9959-9a05e7f36ad8","Benitoite","Bni",0,"mineral",null,32300,7379,false,"BaTi(Si\u003Csub>3\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>)","BaTiSi\u003Csub>3\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>",[18,19,20,21],"Ba","Si","Ti","O",[18,19,20,21],[18,20],",Na,","14.9.9",[27,28],"APPROVED","GRANDFATHERED",1907,"1907","9","C","A","05","59","1","2","Hexagonal",17,109,"0","6.641","9.7597",10,2,"By rotation around [0001]","Flat pyramidal crystals.",6,6.5,"3.65","3.68","Vitreous","Transparent,Translucent","Sapphire blue, white to colorless, pink",[56,57,58,59,60],"blue","colorless","white","pink","purple","Invariably fluorescent blue in SW UV.\r\nBlue shortwave-excited luminescence excited by SW UV caused by titanate groups (TiO\u003Csub>6\u003C\u002Fsub>) ","Poor on \u003Cmi>{10_11}\u003C\u002Fmi>","Poor\u002FIndistinct","Conchoidal","Uniaxial","+","1.756","1.757","1.802","1.804",1.756,1.804,"Visible","O= colorless\r\nE= purple, indigo, greenish blue","Cathodoluminescent","No defined type material.","Benitoite Group. The titanium analogue of Pabstite.\r\n\r\nRelated to Rogermitchellite.","After the type locality, \"as it occurs near the head waters of the San Benito River in San Benito County\", California, USA.","2025-08-11 12:14:18",[],[82,89,93,101],{"id":83,"name":84,"entrytype":9,"csystem":38,"ima_formula":85,"mindat_formula":86,"hmin":48,"hmax":49,"dmeas":41,"dcalc":87,"primary_image_id":88},585,"Bazirite","BaZrSi\u003Csub>3\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>","BaZr(Si\u003Csub>3\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>)","3.82",2914,{"id":90,"name":91,"entrytype":9,"csystem":38,"ima_formula":11,"mindat_formula":92,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":11},499398,"Kopylovite","K\u003Csub>2\u003C\u002Fsub>Ti(Si\u003Csub>3\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>)",{"id":94,"name":95,"entrytype":9,"csystem":38,"ima_formula":96,"mindat_formula":97,"hmin":48,"hmax":48,"dmeas":98,"dcalc":99,"primary_image_id":100},3057,"Pabstite","BaSnSi\u003Csub>3\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>","Ba(Sn,Ti)(Si\u003Csub>3\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>)","4.03","4.07",18512,{"id":102,"name":103,"entrytype":9,"csystem":38,"ima_formula":104,"mindat_formula":105,"hmin":106,"hmax":48,"dmeas":107,"dcalc":108,"primary_image_id":109},4227,"Wadeite","K\u003Csub>2\u003C\u002Fsub>ZrSi\u003Csub>3\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>","K\u003Csub>2\u003C\u002Fsub>Zr(Si\u003Csub>3\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>)",5.5,"3.10","3.16",27697,[],[],[113],{"id":114,"txt":115,"latitude":116,"longitude":117,"country":118},3531,"California State Gem Mine, Santa Rita Peak, San Benito County, California, USA",36.3361111,-120.6052778,"USA",22,[121,124,128,131,134,138,142,146,149,152,155,158,161,165,169,173,176,181,185,189,193,197,202,206,211,215,218,222,226,229,233,237,240,244,248,252,257,262,267,271,276,281,285,289],{"id":122,"year":29,"html":123,"doi":11},16102731,"Louderback, G.D. and W.C. Blasdale (1907) Benitoite, a new California gem mineral, with chemical analysis by Walter C. Blasdale, University of California, Department of Geological Science Bull.: 5: 149-153.",{"id":125,"year":126,"html":127,"doi":11},16102732,1908,"Kraus, E.H. (1908) Interpretation of the chemical composition of the mineral benitoite. Science, new series: 7: 710-711.",{"id":129,"year":126,"html":130,"doi":11},16102733,"Louderback, G.D. & W.C. Blasdale (1908) Benitoite, its mineralogy, paragenesis, and geological occurrence (abstract). Science, new series: 27: 411.",{"id":132,"year":126,"html":133,"doi":11},16102734,"Arnold, R. (1908) Notes on the Occurrence of the Recently Described Gem Mineral, Benitoite. Science, New Series: 27(686): 312-314.",{"id":135,"year":126,"html":136,"doi":137},2030269,"Blasdale, W. C. (1908) The Chemical Formula of the Mineral Benitoite. \u003Ci>Science\u003C\u002Fi>,  28 (712).  \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1126\u002Fscience.28.712.233-a'>doi:10.1126\u002Fscience.28.712.233-a\u003C\u002Fa>","10.1126\u002Fscience.28.712.233-a",{"id":139,"year":126,"html":140,"doi":141},2030794,"Rogers, A. F. (1908) Note on the Crystal Form of Benitoite. \u003Ci>Science\u003C\u002Fi>,  28 (722).  \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1126\u002Fscience.28.722.616'>doi:10.1126\u002Fscience.28.722.616\u003C\u002Fa>","10.1126\u002Fscience.28.722.616",{"id":143,"year":144,"html":145,"doi":11},16102737,1909,"Hlawatsch, C. (1909) Bemerkungen, von über die Krystallklasse des Benitoit (Remarks on the Crystal Class of Benitoite). Tschermaks Mineralogische and Petrographische Mitteilungen: 28: 178-181. (abstract Zeitschr. Kristallographic, Band 50, p. 617, 1912)",{"id":147,"year":144,"html":148,"doi":11},16102738,"Hlawatsch, C. (1909) Die Kristalform des Benitoit. Centralblatt für Mineralogie: 1909: 293-302, 410.",{"id":150,"year":144,"html":151,"doi":11},16102739,"Baumhauer, H. (1909) Über die Winkelverhältnisse des Benitoit (The Angular Relationships of Benitoite). Centralblatt für Mineralogie, Geologie und Paläontologie: 592-594.",{"id":153,"year":144,"html":154,"doi":11},16102740,"Hlawatsch, C. (1909) Bemerkungen über den Benitoit (Remarks on benitoite). Zeitschrift für Kristallographie: 46: 602-603.",{"id":156,"year":144,"html":157,"doi":11},16102741,"Louderback, G.D., Blasdale, W.C. (1909) Benitoite, its paragenesis and mode of occurrence, University of California, Department of Geologic Science Bulletin: 5: 331-380.",{"id":159,"year":144,"html":160,"doi":11},16102742,"Palache, C. (1909) Note on a crystal form of benitoite. American Journal of Science, 4th. series: 27: 398. (abstract Zeitschrift für Kristallographie, Band 46: 379)",{"id":162,"year":163,"html":164,"doi":11},16102743,1910,"Louderback, G.D. (1910) Benitoite, its Paragenesis and Mode of Occurrence. University of California Pub. 5, 331.",{"id":166,"year":167,"html":168,"doi":11},16102744,1919,"Rinne, F. (1919) Lauediagramme des Benitoit (The Laue Diagram for Benitoite). Centralblatt für Mineralogie, Geologie und Paläontologie, Section A: 193-201.",{"id":170,"year":171,"html":172,"doi":11},16102745,1927,"Valeton, J.J.P. (1927) Über die Struktur des Benitoits. Fortschritte der Mineralogie: 12: 91-92.",{"id":174,"year":171,"html":175,"doi":11},16102746,"Gossner, B., Mussgnug, E. (1927) Röntgenographische Untersuchung von Benitoit (Radiographic Examination of Benitoite). Centralblatt für Mineralogie, Geologie und Paläontologie, Section A: 9: 304-310.",{"id":177,"year":178,"html":179,"doi":180},104266,1930,"Zachariasen, W. H. (1930) The Crystal Structure of Benitoite, BaTiSi\u003Csub>3\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  74 (1-6). 139-146 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1930.74.1.139'>doi:10.1524\u002Fzkri.1930.74.1.139\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fzk\u002Fvol74\u002FZK74_139.pdf' class='refpdflink'>\u003C\u002Fa>","10.1524\u002Fzkri.1930.74.1.139",{"id":182,"year":183,"html":184,"doi":11},522652,1955,"Rose, D. E., Roy, Rustum (1955) On the stability and hydrothermal synthesis of benitoite. \u003Ci>American Mineralogist\u003C\u002Fi>,  40 (5-6). 542-544 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM40\u002FAM40_542.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":186,"year":187,"html":188,"doi":11},16102749,1957,"Quick, L. (1957) The Story of Benitoite – The World’s Rarest Gem. Lapidary Journal: 10(6): 510-518.",{"id":190,"year":191,"html":192,"doi":11},16102750,1965,"Burley, S.P., Troup, G.J. (1965) Paramagnetic Resonance of Fe3+ in Benitoite. British Journal of Applied Physics: 16(3): 315-318.",{"id":194,"year":195,"html":196,"doi":11},16102751,1967,"Jones, R.W. (1967) Collecting Fluorescent Minerals. Rocks & Minerals: 430-432.",{"id":198,"year":199,"html":200,"doi":201},107808,1969,"Fischer, Karl (1969) Verfeinerung der Kristallstruktur von Benitoit BaTi[Si3O9]. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  129 (1). 222-243 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1969.129.1-4.222'>doi:10.1524\u002Fzkri.1969.129.1-4.222\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fzk\u002Fvol129\u002FZK129_222.pdf' class='refpdflink'>\u003C\u002Fa>","10.1524\u002Fzkri.1969.129.1-4.222",{"id":203,"year":204,"html":205,"doi":11},525781,1972,"Laird, Jo, Albee, Arden L. (1972) Chemical composition and physical, optical, and structural properties of benitoite, neptunite, and joaquinite. \u003Ci>American Mineralogist\u003C\u002Fi>,  57 (1-2) 85-102 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM57\u002FAM57_85.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":207,"year":208,"html":209,"doi":210},7741490,1974,"Beran, A. (1974) Das Absorptionsspektrum des Benitoits im nahen Ultrarot. \u003Ci>TMPM Tschermaks Mineralogische und Petrographische Mitteilungen\u003C\u002Fi>, 21 (1). 47-51 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf01084950'>doi:10.1007\u002Fbf01084950\u003C\u002Fa>","10.1007\u002Fbf01084950",{"id":212,"year":213,"html":214,"doi":11},16102755,1976,"Bancroft, P. (1976) La Benitoite. Le Monde et Minéraux: 11: 258-261.",{"id":216,"year":213,"html":217,"doi":11},16102756,"Adams, D.M., Gardner, I.R. (1976) Single-Crystal Vibrational Spectrum of Benitoite, a Non-Centrosymmetric Silicate Crystal, and Some Comments on Beryl. Dalton Transactions: 4: 315-321.",{"id":219,"year":220,"html":221,"doi":11},12907171,1977,"Wise, William S., Gill, Robert H. (1977) Minerals of the Benitoite Gem Mine. \u003Ci>The Mineralogical Record\u003C\u002Fi>,  8 (6) Tucson. 442-452",{"id":223,"year":224,"html":225,"doi":11},16102758,1980,"Mitchell, K. (1980) The Fluorescence of Benitoite. Journal of Gemmology: 17(3): 149.",{"id":227,"year":224,"html":228,"doi":11},16102759,"Christophe, M., Gouet, G., Wyart, J. (1980) Synthése Hydrothermale de la Bénitoite (Hydrothermal Synthesis of Benitoite). Bulletin de Minéralogie: 103: 118-119.",{"id":230,"year":231,"html":232,"doi":11},16102760,1985,"Bancroft, E.R. (1985) Faceting benitoite. Gems & Minerals: 23-24.",{"id":234,"year":235,"html":236,"doi":11},16102761,1986,"Dupras, D. (1986) California’s New Official Gem, Benitoite. California Geology: 39(1) 3-4.",{"id":238,"year":235,"html":239,"doi":11},16102762,"Wight, W. (1986) Benitoite. Canadian Gemmologist: 7(3): 78-81.",{"id":241,"year":242,"html":243,"doi":11},16102571,1987,"Hawthorne, F.C. (1987) The crystal chemistry of the benitoite group minerals and structural relations in (Si3O9) ring structures. Neues Jahrbuch für Mineralogie, Monatshefte, 1987, 16-30.",{"id":245,"year":246,"html":247,"doi":11},16102764,1990,"Frazier, S., Frazier, A. (1990) A Rare Bit of History. Lapidary Journal: 44(8) 46-58.",{"id":249,"year":250,"html":251,"doi":11},16102765,1991,"Vassilikou-Dova, A.B., Eftaxias, K. (1991) Paramagnetic Defects in Benitoite. Zeitschrift für Naturforschung A: 46: 579-582.",{"id":253,"year":254,"html":255,"doi":256},14120854,1993,"McKeown, David A., Bell, Michael I., Kim, Charles C. (1993) Raman spectroscopy of silicate rings: Benitoite and the three-membered ring. \u003Ci>Physical Review B\u003C\u002Fi>, 48 (22) 16357-16365 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1103\u002Fphysrevb.48.16357'>doi:10.1103\u002Fphysrevb.48.16357\u003C\u002Fa>","10.1103\u002Fphysrevb.48.16357",{"id":258,"year":259,"html":260,"doi":261},29581,1994,"Cook, Robert B. (1994) Cannoisseur's Choice: Benitoite, San Benito County, California. \u003Ci>Rocks & Minerals\u003C\u002Fi>,  69 (6). 392-395 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1080\u002F00357529.1994.9925622'>doi:10.1080\u002F00357529.1994.9925622\u003C\u002Fa>","10.1080\u002F00357529.1994.9925622",{"id":263,"year":264,"html":265,"doi":266},531637,1997,"Laurs, Brendan M., Rohtert, William R., Gray, Michael (1997) Benitoite from the New Idria District, San Benito County, California. \u003Ci>Gems & Gemology\u003C\u002Fi>,  33 (3) 166-187 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.5741\u002Fgems.33.3.166'>doi:10.5741\u002Fgems.33.3.166\u003C\u002Fa>","10.5741\u002Fgems.33.3.166",{"id":268,"year":269,"html":270,"doi":11},16963183,2001,"(2001) Benitoite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fbenitoite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":272,"year":273,"html":274,"doi":275},153098,2004,"Gaft, M., Nagli, L., Waychunas, G., Weiss, D. (2004) The nature of blue luminescence from natural benitoite BaTiSi3O9. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  31 (6). 365-373 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs00269-004-0407-x'>doi:10.1007\u002Fs00269-004-0407-x\u003C\u002Fa>","10.1007\u002Fs00269-004-0407-x",{"id":277,"year":278,"html":279,"doi":280},16695,2005,"Gaft, M., Nagli, L., Waychunas, G., Panczer, G. (2005) The nature of red luminescence of natural benitoite BaTiSi3O9. \u003Ci>Mineralogy and Petrology\u003C\u002Fi>,  85 (1) 33-44 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs00710-005-0100-x'>doi:10.1007\u002Fs00710-005-0100-x\u003C\u002Fa>","10.1007\u002Fs00710-005-0100-x",{"id":282,"year":283,"html":284,"doi":11},12909712,2008,"Wilson, Wendell E. (2008) The 100-year history of the Benitoite Gem mine, San Benito County, California. \u003Ci>The Mineralogical Record\u003C\u002Fi>, 39 (1) 13-42",{"id":286,"year":287,"html":288,"doi":11},16102772,2021,"Benitoite page on gia.edu (2021) https:\u002F\u002Fwww.gia.edu\u002FUK-EN\u002Fbenitoite-reading-list",{"id":290,"year":291,"html":292,"doi":293},15651678,2023,"Vigier, Maxence, Fritsch, Emmanuel, Cavignac, Théo, Latouche, Camille, Jobic, Stéphane (2023) Shortwave UV Blue Luminescence of Some Minerals and Gems Due to Titanate Groups. \u003Ci>Minerals\u003C\u002Fi>, 13 (1) 104 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3390\u002Fmin13010104'>doi:10.3390\u002Fmin13010104\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fwww.mdpi.com\u002F2075-163X\u002F13\u002F1\u002F104\u002Fpdf?version=1674017971' class='refpdflink'>\u003C\u002Fa>","10.3390\u002Fmin13010104",[295,305,313,322,331,341,349,356,363,369,379,385,391,397,405,412,419,428,436,443,449,457,464,471,479,485,491,497,503,509,514,519,527,535,543,549,557,564,571,578,584,591,597,605,612,618,625,632,638,644,650,656,662,667,674,680,686,691,696,702,708,714,720,726],{"id":296,"source_url":297,"license_code":298,"credit_html":299,"title":300,"description":301,"author":302,"original_width":303,"original_height":304},3033,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1986096","Public domain","Baryonyx at English Wikipedia, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1986096\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite new.jpg","Benitoite on natrolite, in my collection.","Baryonyx at English Wikipedia",640,480,{"id":306,"source_url":307,"license_code":308,"credit_html":309,"title":310,"description":311,"author":312,"original_width":303,"original_height":304},35410,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1192307","CC BY-SA 3.0","Pablo Alberto Salguero Quiles, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1192307\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite.jpg","Benitoite crystals from San Benito, California, USA","Pablo Alberto Salguero Quiles",{"id":314,"source_url":315,"license_code":298,"credit_html":316,"title":317,"description":318,"author":319,"original_width":320,"original_height":321},3035,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=8858870","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=8858870\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, UVL.jpg","benitoite, neptunite, SW UV illumination : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)","Géry PARENT",4288,2848,{"id":323,"source_url":324,"license_code":308,"credit_html":325,"title":326,"description":327,"author":328,"original_width":329,"original_height":330},3038,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142295","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142295\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-136234.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 1.5 x 1.2 x 0.8 cm.\u003C\u002Fdd>\n\u003Cdd>A sharp, partially gemmy, 7.68 carat, indigo-blue benitoite crystal. This floater beauty has classic trigonal form and comes from the famous and now-closed Dallas Gem Mine. The UNRETOUCHED backlit photo highlights the gemminess and color saturation. Complete floater, and super-sharp.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",350,257,{"id":332,"source_url":333,"license_code":334,"credit_html":335,"title":336,"description":337,"author":338,"original_width":339,"original_height":340},3040,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11106498","CC BY-SA 4.0","Didier Descouens, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11106498\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite HD.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA\u003C\u002Fdd>\n\u003Cdd>View 46 mm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Didier Descouens",5623,3737,{"id":342,"source_url":343,"license_code":308,"credit_html":344,"title":345,"description":346,"author":328,"original_width":347,"original_height":348},35418,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10447411","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10447411\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-dtn18a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3279.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 1 x 0.9 x 0.6 cm\n\u003Cdl>\u003Cdt>Benitoite (5 carats)\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is a single, translucent, dark blue, benitoite crystal with fine luster. It has large gemmy areas. Given the weight, its a certainty that you could cut stones from this and make a buck (probably worth $1500-2000 cut up) but I prefer to leave it as an unusually fine loose gem crystal! It has EXCEPTIONAL lustre and rich blue color!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",560,600,{"id":350,"source_url":351,"license_code":308,"credit_html":352,"title":353,"description":354,"author":328,"original_width":348,"original_height":355},35419,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10447455","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10447455\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-dtn6a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 1.9 x 1.6 x 0.9 cm\n\u003Cdl>\u003Cdt>Benitoite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This mineral is found in crystals only in California, where it represents a rare form within the hexagonal system, the ditrigonal-dipyramidal crystal shape. This sharp dark blue crystal, perched on matrix, is well formed, slightly transparent, and has good luster. The crystal measures 1.6 cm across. One termination has been repaired, but does not affect the visual quality of the specimen although it lowers the price from $2000 or so in my opinion. Still, displays like a killer and you have to look close to notice the repair.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",527,{"id":357,"source_url":358,"license_code":308,"credit_html":359,"title":360,"description":361,"author":362,"original_width":320,"original_height":321},7292,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13344302","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13344302\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, neptunite, joaquinite-(Ce), djurleite, natrolite, serpentine.jpg","benitoite, neptunite, joaquinite-(Ce), djurleite, natrolite, serpentine : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA - benitoïte : 15,5 mm, neptunite : 43 mm, joaquinite-(Ce) : 2 mm, djurleite : 4 mm","Parent Géry",{"id":364,"source_url":365,"license_code":308,"credit_html":366,"title":367,"description":368,"author":362,"original_width":320,"original_height":321},12634,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13585696","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13585696\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, joaquinite-(Ce), neptunite, natrolite.jpg","benitoite,  joaquinite-(Ce), neptunite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":370,"source_url":371,"license_code":372,"credit_html":373,"title":374,"description":375,"author":376,"original_width":377,"original_height":378},2667,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500666","CC BY 2.0","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500666\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 9 (49143720718).jpg","\u003Cp>(public display, Leadville Mining Museum, Leadville, Colorado, USA)\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Bluish = benitoite\nWhite = natrolite\nBlack = neptunite\nHost rock = blueschist\n\u003C\u002Fp>\u003Cp>The bluish-colored crystals shown above are benitoite, a very rare barium titanium silicate mineral (BaTiSi3O9) known principally from San Benito County, California, USA.  Large, gem-quality crystals that have been cut, faceted, and polished have the “fire” of diamond (~same index of refraction), but have a lovely deep blue color (<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\">http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\u003C\u002Fa>\" rel=\"noreferrer nofollow\">www.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Ben...<\u002Fa>).  Benitoite is a metamorphic mineral.  Its principal occurrence is in California, where polymineralic veins have intruded a blueschist body between serpentinites and greenstones of the Franciscan Formation.  The Franciscan Fm. is a widespread, heterolithic unit of Jurassic-Cretaceous age in the Coast Ranges of western California.  The vein mineralization age is late Middle Miocene (12 Ma).\n\u003C\u002Fp>\u003Cp>Four minerals are commonly found in these veins: benitoite (blue), neptunite (blackish - Na2KLi(Fe,Mn)2Ti2Si8O24), natrolite (white - Na2Al2Si3O10·2H2O), and joaquinite (orangish-brown - Ba2NaCe2FeTi2Si8O26(OH,F)·H2O).  The natrolite portion is acid-soluble.  Nicely crystalline specimens like those seen here are produced by acid etching the natrolite-dominated veins.  After acid treatment, the other minerals stand out in relief.\n\u003C\u002Fp>\u003Cp>Stratigraphy of blueschist host rock: Franciscan Complex, Jurassic-Cretaceous\n\u003C\u002Fp>\u003Cp>Age of benitoite-bearing vein mineralization: Middle Miocene, 12 Ma\n\u003C\u002Fp>\nLocality: Dallas Gem Mine (a.k.a. Benitoite Gem Mine), near Santa Rita peak, southeast of New Idria, far-southeastern San Benito County, California, USA (~36° 20’ 10” North latitude, ~120° 36’ 19” West longitude)","James St. John",3008,2000,{"id":380,"source_url":381,"license_code":298,"credit_html":382,"title":383,"description":384,"author":319,"original_width":320,"original_height":321},3034,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5543748","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5543748\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), benitoite, neptunite, natrolite 1.jpg","joaquinite-(Ce), benitoite, neptunite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)",{"id":386,"source_url":387,"license_code":298,"credit_html":388,"title":389,"description":390,"author":11,"original_width":320,"original_height":321},35411,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5299918","Unknown author, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5299918\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte, neptunite, joaquinite-(Ce), natrolite 2 (USA).jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa> (blue), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJoaquinite-(Ce)\" class=\"extiw\" title=\"en:Joaquinite-(Ce)\">Joaquinite\u003C\u002Fa> (brown) and \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNeptunite\" class=\"extiw\" title=\"en:Neptunite\">Neptunite\u003C\u002Fa> (dark red) on \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa> (white) : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)",{"id":392,"source_url":393,"license_code":298,"credit_html":394,"title":395,"description":396,"author":319,"original_width":320,"original_height":321},12632,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=8990636","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=8990636\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), benitoite.jpg","joaquinite-(Ce), benitoite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":398,"source_url":399,"license_code":308,"credit_html":400,"title":401,"description":402,"author":328,"original_width":403,"original_height":404},3036,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10121850","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10121850\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-Natrolite-23815.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Five fine, sharp benitoite crystals, nicely balanced on the matrix, some of them partly gemmy. The largest measure 1.5 cm. 5 x 3.7 x 1.5 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",500,375,{"id":406,"source_url":407,"license_code":308,"credit_html":408,"title":409,"description":410,"author":328,"original_width":348,"original_height":411},3037,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10131209","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10131209\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-41672.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>An exquisite 1.5-cm crystal. It has a tiny neptunite. 2.2 x 1.7 x 1.5 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",554,{"id":413,"source_url":414,"license_code":308,"credit_html":415,"title":416,"description":417,"author":328,"original_width":348,"original_height":418},35412,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10131330","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10131330\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-Neptunite-41745.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNeptunite\" class=\"extiw\" title=\"en:Neptunite\">Neptunite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>An extraordinarily elegant plate of well-balanced benitoites perched on just the right amount of matrix, accented by stunning jetblack neptunites. Often, too much of the natrolite is removed in preparing the specimen and the benitoites are left sitting on dark matrix. This prep job, though, is so even its incredible, with uniform stark white backing to the sharp blue triangles. Note the 1.2 cm floating triangle, showing ALL faces and all 3 terminations, which is what really makes the piece significant - getting those floating crystals is NOT easy. I recently exchanged this from the Steve Smale collection. Steve is noted for his sharp eye for perfection and \"good horizons\", as well as his general good taste in aesthetic mineral specimens. This one fits! But, he had a few too many, we thought... 8.7 x 6 x 1.2 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",441,{"id":420,"source_url":421,"license_code":298,"credit_html":422,"title":423,"description":424,"author":425,"original_width":426,"original_height":427},3039,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10592532","Stickpen, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10592532\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-neptunite-natrolite.jpg","Benitoite (blue) & neptunite (black) in natrolite (white) from San Benito County, California, USA. Photographed at the San Diego Natural History Museum, California, USA.","Stickpen",2279,2659,{"id":429,"source_url":430,"license_code":308,"credit_html":431,"title":432,"description":433,"author":328,"original_width":434,"original_height":435},35413,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141854","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141854\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-Natrolite-133461.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.7 x 3.9 x 2.8 cm.\u003C\u002Fdd>\n\u003Cdd>An EXCELLENT specimen of LARGE, to 2.1 cm, partially gemmy, indigo-blue benitoite crystals aesthetically sprinkled on natrolite-covered matrix. This is FINE, older material, HARD to obtain now with the closing of the mine. Ed Ruggiero purchased this showy, pristine piece from Jo Runner at the Denver Show in June, 1975.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",525,494,{"id":437,"source_url":438,"license_code":308,"credit_html":439,"title":440,"description":441,"author":328,"original_width":348,"original_height":442},35414,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10144715","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10144715\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-Neptunite-Natrolite-144991.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNeptunite\" class=\"extiw\" title=\"en:Neptunite\">Neptunite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNatrolite\" class=\"extiw\" title=\"en:Natrolite\">Natrolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 10.3 x 6.6 x 3.0 cm.\u003C\u002Fdd>\n\u003Cdd>An AESTHETIC and EXCELLENT Dallas Gem Mine CABINET plate with partially gemmy, light indigo-blue benitoite crystals to 1.5 cm RICHLY sprinkled on natrollite-covered matrix. Scattered black neptunite crystals to 7 mm are a nice compliment. This is FINE, older material, HARD to obtain now with the closing of the mine.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",424,{"id":444,"source_url":445,"license_code":308,"credit_html":446,"title":447,"description":448,"author":328,"original_width":442,"original_height":348},35415,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10146235","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10146235\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-Neptunite-153374.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNeptunite\" class=\"extiw\" title=\"en:Neptunite\">Neptunite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.3 x 4.6 x 2.0 cm.\u003C\u002Fdd>\n\u003Cdd>A 1.2 cm high, partially gemmy, free-standing benitoite crystal dominates this excellent, richly covered benitoite specimen from the famous and now-closed Dallas Gem Mine. The largest benitoite is 1.6 cm and a couple of neptunites are a nice accent. This is classic, showy, old-time, highly representative material that is not diminished by the minor edge wear on most of the major benitoites. Despite this minor edge wear, it is overall a visually impressive piece with robust color and contrast, and lots more 3-dimensionality than usual. Ex. John Ydren Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",{"id":450,"source_url":451,"license_code":308,"credit_html":452,"title":453,"description":454,"author":328,"original_width":455,"original_height":456},35416,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150010","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150010\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-Neptunite-171806.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNeptunite\" class=\"extiw\" title=\"en:Neptunite\">Neptunite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.1 x 1.3 x 1.0 cm.\u003C\u002Fdd>\n\u003Cdd>A sharp, gemmy, 1.3 cm, indigo-blue benitoite crystal beautifully attached to a lustrous, black neptunite crystal from the famous and now-closed Dallas Gem Mine. The bit of natrolite is a nice accent. The benitoite has textbook crystal form and sharp beveled edges. A CLASSIC Dallas Gem Mine thumbnail combo.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",400,372,{"id":458,"source_url":459,"license_code":308,"credit_html":460,"title":461,"description":462,"author":328,"original_width":455,"original_height":463},35417,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10441726","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10441726\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-Neptunite-mun05-53b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNeptunite\" class=\"extiw\" title=\"en:Neptunite\">Neptunite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Gem Mine, San Benito County, California\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 4.1 x 1.8 x 1.7 cm\n\u003Cdl>\u003Cdt>Benitoite on Neptunite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is a most unusual specimen featuring a benny perched up on a neptunite crystal, as if it were hanging on and spinning around it. The neptunite is terminated, if cruedly and etched. The benitoite is also temrinated fully, though the growth is asymmetric in parts. It is pristine and complete save for a tiny ding that does not detract. Especially gazing at it in a case, the eye is struck by the casual randomness and symmetry of the associaiton - you just don't see bennies like this around. This is a thick benitoite too, not slender at all. The two best crystal terminations on the benitoite triangle have nice, thick gem rough areas to them. I would estimate there is a carat stone in the frontal termination, and a slightly smaller one in the termination pointing up and away as shown. Frank Knechtel was a soybean famer in San Diego who sold his land for suburban development and amassed a huge and fine collection. Kevin is a friend of mine, locally, who bought this from me perhaps 6-7 years ago and has now traded it back. I prefer to sell it as a specimen first, but with the value of cut benitoite rising now that the mine is stripped bare, I will simply have it cut eventually if it does not sell first. 4.1 x 1.8 x 1.7 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",322,{"id":465,"source_url":466,"license_code":308,"credit_html":467,"title":468,"description":469,"author":328,"original_width":470,"original_height":348},35420,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10464118","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10464118\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-Neptunite-ss15a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNeptunite\" class=\"extiw\" title=\"en:Neptunite\">Neptunite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Gem Mine, San Benito Co., California\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 5.7 x 3.3 x 2 cm\n\u003Cdl>\u003Cdt>Benitoite, Neptunite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>RAZOR SHARP XLS!!! Perfectly balanced, this aesthetic combination specimen of lustrous, blue benitoite crystals and a black, crystal of superbly lustered, neptunite, represents the very best of this unique deposit - now, forever closed. The largest benitoite is 1.5 cm in length and the neptunite is 1.75 cm in length. Oh, by the way, these crystals are perched on white natrolite for stunning contrast. The color of the blue benitoite is top tier, and the lustre of both species is very high. In person, you can see why Steve bought this and stored it - it is extremely fine, just that extra bit sharper and more beautiful, than most. It is a top tier miniature for him and for anybody.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",536,{"id":472,"source_url":473,"license_code":298,"credit_html":474,"title":475,"description":476,"author":362,"original_width":477,"original_height":478},35421,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701336","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701336\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte sur natrolite et serpentine (USA).jpg","I, the copyright holder of this work, hereby publish it under the following license:",3564,2377,{"id":480,"source_url":481,"license_code":298,"credit_html":482,"title":483,"description":484,"author":362,"original_width":320,"original_height":321},35422,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701519","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701519\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, neptunite, joaquinite-(Ce), natrolite, serpentine.jpg","benitoite, neptunite, joaquinite-(Ce), natrolite, serpentine : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":486,"source_url":487,"license_code":298,"credit_html":488,"title":489,"description":490,"author":362,"original_width":320,"original_height":321},35423,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701581","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701581\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte, neptunite, joaquinite-(Ce) sur natrolite et serpentine (USA) 2.jpg","benitoïte, neptunite, joaquinite-(Ce), natrolite, serpentine : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org",{"id":492,"source_url":493,"license_code":308,"credit_html":494,"title":495,"description":496,"author":362,"original_width":320,"original_height":321},7293,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13583820","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13583820\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, neptunite, joaquinite-(Ce), djurleite, natrolite.jpg","benitoite, neptunite, joaquinite-(Ce), djurleite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":498,"source_url":499,"license_code":308,"credit_html":500,"title":501,"description":502,"author":319,"original_width":320,"original_height":321},35424,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17448706","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17448706\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), bénitoïte, neptunite, natrolite, serpentine (Gem Mine San-Benito Californie - USA) 1.JPG","joaquinite-(Ce), benitoite, neptunite, djurleite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)",{"id":504,"source_url":505,"license_code":308,"credit_html":506,"title":507,"description":508,"author":362,"original_width":320,"original_height":321},35425,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137697","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137697\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, bénitoïte, neptunite, natrolite 1.jpeg","djurleite, benitoïte, neptunite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)",{"id":510,"source_url":511,"license_code":308,"credit_html":512,"title":513,"description":508,"author":362,"original_width":320,"original_height":321},35426,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137699","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137699\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, bénitoïte, neptunite, natrolite.jpeg",{"id":515,"source_url":516,"license_code":308,"credit_html":517,"title":518,"description":490,"author":362,"original_width":320,"original_height":321},35427,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=22584470","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=22584470\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte, neptunite, joaquinite-(Ce), natrolite, serpentine 2.JPG",{"id":520,"source_url":521,"license_code":372,"credit_html":522,"title":523,"description":524,"author":376,"original_width":525,"original_height":526},2663,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=83657474","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=83657474\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-joaquinite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 2 (25400412690).jpg","\u003Cp>Benitoite crystals from California, USA. (public display, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA)\n\u003C\u002Fp>\u003Cp>Blue = benitoite\nWhite = natrolite\nSmall black sticks = neptunite\n\u003C\u002Fp>\u003Cp>The bluish-colored crystals shown above are benitoite, a very rare barium titanium silicate mineral (BaTiSi3O9) known principally from San Benito County, California, USA.  Large, gem-quality crystals that have been cut, faceted, and polished have the “fire” of diamond (~same index of refraction), but have a lovely deep blue color (<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\">http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\u003C\u002Fa>\" rel=\"noreferrer nofollow\">www.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Ben...<\u002Fa>).  Benitoite is a metamorphic mineral.  Its principal occurrence is in California, where polymineralic veins have intruded a blueschist body between serpentinites and greenstones of the Franciscan Formation.  The Franciscan Fm. is a widespread, heterolithic unit of Jurassic-Cretaceous age in the Coast Ranges of western California.  The vein mineralization age is late Middle Miocene (12 m.y.).\n\u003C\u002Fp>\u003Cp>Four minerals are commonly found in these veins: benitoite (blue), neptunite (blackish - Na2KLi(Fe,Mn)2Ti2Si8O24), natrolite (white - Na2Al2Si3O10·2H2O), and joaquinite (orangish-brown - Ba2NaCe2FeTi2Si8O26(OH,F)·H2O).  The natrolite portion is acid-soluble.  Nicely crystalline rock faces like the one shown above are produced by acid etching the natrolite-dominated veins.  After acid treatment, the other minerals stand out in relief.\n\u003C\u002Fp>\u003Cp>Stratigraphy of blueschist host rock: Franciscan Complex, Jurassic-Cretaceous\n\u003C\u002Fp>\u003Cp>Age of benitoite-bearing vein mineralization: Middle Miocene, 12 Ma\n\u003C\u002Fp>\nLocality: Dallas Gem Mine (a.k.a. Benitoite Gem Mine), near Santa Rita peak, southeast of New Idria, far-southeastern San Benito County, California, USA (~36° 20’ 10” North latitude, ~120° 36’ 19” West longitude)",4100,2404,{"id":528,"source_url":529,"license_code":372,"credit_html":530,"title":531,"description":532,"author":376,"original_width":533,"original_height":534},2664,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=83657773","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=83657773\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 2 (32832839407).jpg","\u003Cp>Benitoite crystals from California, USA.\n\u003C\u002Fp>\u003Cp>Blue = benitoite\nWhite = natrolite\nBlack sticks = neptunite\nHost rock = blueschist\n\u003C\u002Fp>\u003Cp>The bluish-colored crystals shown above are benitoite, a very rare barium titanium silicate mineral (BaTiSi3O9) known principally from San Benito County, California, USA.  Large, gem-quality crystals that have been cut, faceted, and polished have the “fire” of diamond (~same index of refraction), but have a lovely deep blue color (<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\">http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\u003C\u002Fa>\" rel=\"noreferrer nofollow\">www.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Ben...<\u002Fa>).  Benitoite is a metamorphic mineral.  Its principal occurrence is in California, where polymineralic veins have intruded a blueschist body between serpentinites and greenstones of the Franciscan Formation.  The Franciscan Fm. is a widespread, heterolithic unit of Jurassic-Cretaceous age in the Coast Ranges of western California.  The vein mineralization age is late Middle Miocene (12 Ma).\n\u003C\u002Fp>\u003Cp>Four minerals are commonly found in these veins: benitoite (blue), neptunite (blackish - Na2KLi(Fe,Mn)2Ti2Si8O24), natrolite (white - Na2Al2Si3O10·2H2O), and joaquinite (orangish-brown - Ba2NaCe2FeTi2Si8O26(OH,F)·H2O).  The natrolite portion is acid-soluble.  Nicely crystalline rock faces like the one shown above are produced by acid etching the natrolite-dominated veins.  After acid treatment, the other minerals stand out in relief.\n\u003C\u002Fp>\u003Cp>Stratigraphy of blueschist host rock: Franciscan Complex, Jurassic-Cretaceous\n\u003C\u002Fp>\u003Cp>Age of benitoite-bearing vein mineralization: Middle Miocene, 12 Ma\n\u003C\u002Fp>\nLocality: Dallas Gem Mine (a.k.a. Benitoite Gem Mine), near Santa Rita peak, southeast of New Idria, far-southeastern San Benito County, California, USA (~36° 20’ 10” North latitude, ~120° 36’ 19” West longitude)",2482,3278,{"id":536,"source_url":537,"license_code":372,"credit_html":538,"title":539,"description":540,"author":376,"original_width":541,"original_height":542},2665,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500656","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500656\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 4 (49144209306).jpg","\u003Cp>(public display, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA)\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Blue = benitoite\nWhite = natrolite\nBlack = neptunite\nHost rock = blueschist\n\u003C\u002Fp>\u003Cp>The bluish-colored crystals shown above are benitoite, a very rare barium titanium silicate mineral (BaTiSi3O9) known principally from San Benito County, California, USA.  Large, gem-quality crystals that have been cut, faceted, and polished have the “fire” of diamond (~same index of refraction), but have a lovely deep blue color (<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\">http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\u003C\u002Fa>\" rel=\"noreferrer nofollow\">www.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Ben...<\u002Fa>).  Benitoite is a metamorphic mineral.  Its principal occurrence is in California, where polymineralic veins have intruded a blueschist body between serpentinites and greenstones of the Franciscan Formation.  The Franciscan Fm. is a widespread, heterolithic unit of Jurassic-Cretaceous age in the Coast Ranges of western California.  The vein mineralization age is late Middle Miocene (12 Ma).\n\u003C\u002Fp>\u003Cp>Four minerals are commonly found in these veins: benitoite (blue), neptunite (blackish - Na2KLi(Fe,Mn)2Ti2Si8O24), natrolite (white - Na2Al2Si3O10·2H2O), and joaquinite (orangish-brown - Ba2NaCe2FeTi2Si8O26(OH,F)·H2O).  The natrolite portion is acid-soluble.  Nicely crystalline specimens like those seen here are produced by acid etching the natrolite-dominated veins.  After acid treatment, the other minerals stand out in relief.\n\u003C\u002Fp>\u003Cp>Stratigraphy of blueschist host rock: Franciscan Complex, Jurassic-Cretaceous\n\u003C\u002Fp>\u003Cp>Age of benitoite-bearing vein mineralization: Middle Miocene, 12 Ma\n\u003C\u002Fp>\nLocality: Dallas Gem Mine (a.k.a. Benitoite Gem Mine), near Santa Rita peak, southeast of New Idria, far-southeastern San Benito County, California, USA (~36° 20’ 10” North latitude, ~120° 36’ 19” West longitude)",3466,2284,{"id":544,"source_url":545,"license_code":372,"credit_html":546,"title":547,"description":548,"author":376,"original_width":526,"original_height":378},2666,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500664","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500664\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 8 (49143717068).jpg","\u003Cp>Blue = benitoite\nWhite = natrolite\nBlack = neptunite\nHost rock = blueschist\n\u003C\u002Fp>\u003Cp>The bluish-colored crystals shown above are benitoite, a very rare barium titanium silicate mineral (BaTiSi3O9) known principally from San Benito County, California, USA.  Large, gem-quality crystals that have been cut, faceted, and polished have the “fire” of diamond (~same index of refraction), but have a lovely deep blue color (<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"https:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\">https:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\u003C\u002Fa>\" rel=\"noreferrer nofollow\">www.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Ben...<\u002Fa>).  Benitoite is a metamorphic mineral.  Its principal occurrence is in California, where polymineralic veins have intruded a blueschist body between serpentinites and greenstones of the Franciscan Formation.  The Franciscan Fm. is a widespread, heterolithic unit of Jurassic-Cretaceous age in the Coast Ranges of western California.  The vein mineralization age is late Middle Miocene (12 Ma).\n\u003C\u002Fp>\u003Cp>Four minerals are commonly found in these veins: benitoite (blue), neptunite (blackish - Na2KLi(Fe,Mn)2Ti2Si8O24), natrolite (white - Na2Al2Si3O10·2H2O), and joaquinite (orangish-brown - Ba2NaCe2FeTi2Si8O26(OH,F)·H2O).  The natrolite portion is acid-soluble.  Nicely crystalline specimens like those seen here are produced by acid etching the natrolite-dominated veins.  After acid treatment, the other minerals stand out in relief.\n\u003C\u002Fp>\u003Cp>Stratigraphy of blueschist host rock: Franciscan Complex, Jurassic-Cretaceous\n\u003C\u002Fp>\u003Cp>Age of benitoite-bearing vein mineralization: Middle Miocene, 12 Ma\n\u003C\u002Fp>\nLocality: Dallas Gem Mine (a.k.a. Benitoite Gem Mine), near Santa Rita peak, southeast of New Idria, far-southeastern San Benito County, California, USA (~36° 20’ 10” North latitude, ~120° 36’ 19” West longitude)",{"id":550,"source_url":551,"license_code":372,"credit_html":552,"title":553,"description":554,"author":376,"original_width":555,"original_height":556},2668,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500668","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500668\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 12 (49144418917).jpg","\u003Cp>(public display, Field Museum of Natural History, Chicago, Illinois, USA)\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Blue = benitoite\nWhite = natrolite\nBlack = neptunite\nHost rock = blueschist\n\u003C\u002Fp>\u003Cp>The bluish-colored crystals shown above are benitoite, a very rare barium titanium silicate mineral (BaTiSi3O9) known principally from San Benito County, California, USA.  Large, gem-quality crystals that have been cut, faceted, and polished have the “fire” of diamond (~same index of refraction), but have a lovely deep blue color (<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\">http:\u002F\u002Fwww.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Benitoite-1.gif\u003C\u002Fa>\" rel=\"noreferrer nofollow\">www.jewelryexpert.com\u002Fcatalog\u002Fgraphics\u002FFancy-Trillium-Ben...<\u002Fa>).  Benitoite is a metamorphic mineral.  Its principal occurrence is in California, where polymineralic veins have intruded a blueschist body between serpentinites and greenstones of the Franciscan Formation.  The Franciscan Fm. is a widespread, heterolithic unit of Jurassic-Cretaceous age in the Coast Ranges of western California.  The vein mineralization age is late Middle Miocene (12 Ma).\n\u003C\u002Fp>\u003Cp>Four minerals are commonly found in these veins: benitoite (blue), neptunite (blackish - Na2KLi(Fe,Mn)2Ti2Si8O24), natrolite (white - Na2Al2Si3O10·2H2O), and joaquinite (orangish-brown - Ba2NaCe2FeTi2Si8O26(OH,F)·H2O).  The natrolite portion is acid-soluble.  Nicely crystalline specimens like those seen here are produced by acid etching the natrolite-dominated veins.  After acid treatment, the other minerals stand out in relief.\n\u003C\u002Fp>\u003Cp>Stratigraphy of blueschist host rock: Franciscan Complex, Jurassic-Cretaceous\n\u003C\u002Fp>\u003Cp>Age of benitoite-bearing vein mineralization: Middle Miocene, 12 Ma\n\u003C\u002Fp>\nLocality: Dallas Gem Mine (a.k.a. Benitoite Gem Mine), near Santa Rita peak, southeast of New Idria, far-southeastern San Benito County, California, USA (~36° 20’ 10” North latitude, ~120° 36’ 19” West longitude)",1876,2373,{"id":558,"source_url":559,"license_code":372,"credit_html":560,"title":561,"description":554,"author":376,"original_width":562,"original_height":563},2669,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500669","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500669\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 11 (49144217586).jpg",2039,2472,{"id":565,"source_url":566,"license_code":372,"credit_html":567,"title":568,"description":554,"author":376,"original_width":569,"original_height":570},2670,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500670","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84500670\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Blueschist with benitoite-neptunite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) 13 (49143721538).jpg",1880,2356,{"id":572,"source_url":573,"license_code":308,"credit_html":574,"title":575,"description":576,"author":328,"original_width":577,"original_height":455},3043,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10446893","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10446893\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-d06-242a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 4 x 2 x 1.5 cm\n\u003Cdl>\u003Cdt>Benitoite (HUGE gemmy crystals)\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>WOW! I hardly need to say that these are EXTREMELY large benitoite crystals, and very thick, and have a sizable gem rough value to them. I was able to obtain this from the former co-owner of the benitoite mine, Bill Forrest: he tell sme it was mined sometime in the early 1980's . It was in a small area that produced several very large and gemmy crystals. One crystal of this group cut a 10 ct. gem. However, as he put it , \"This is one of the larger crystals, so I decided to hold on to it till now. Most benitoite crystals don't have the luster and depth that this one has. It also has 2 large clear areas that will cut two ct. to three ct. gems minimum. With the conditions at the Benitoite Gem Mine I don't think anything like this will be coming out in the future, obviously. \" Personally, I have seen only one other for sale from this pocket, a well-known toenail-sized specimen that was in the Frank Knechtel collection and is now in the Irv Brown collection. This specimen is more large and has a deeper blue color, which is really quite remarkable in person. The overall impact of the piece is beyond its actual size, and this all aside from the intrinsic value of several large stones which could be cut from the gemmy tips. The specimen is 4 cm along ht ediagonal front , or longest, edge top to bottom. It is 2.5 cm across if measured lengthwise at longest. It IS a full miniature, if on the smallish end. But, the crystals really transcend the size of the overall piece. I do not think you will ever see anything like this again on the market.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",216,{"id":579,"source_url":580,"license_code":308,"credit_html":581,"title":582,"description":576,"author":328,"original_width":583,"original_height":455},3044,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10446895","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10446895\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-d06-242c.jpg",276,{"id":585,"source_url":586,"license_code":308,"credit_html":587,"title":588,"description":576,"author":328,"original_width":589,"original_height":590},3045,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10446896","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10446896\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite-d06-242b.jpg",461,800,{"id":592,"source_url":593,"license_code":308,"credit_html":594,"title":595,"description":596,"author":319,"original_width":320,"original_height":321},6488,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=19987652","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=19987652\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, bénitoïte, neptunite, joaquinite-(Ce), natrolite, serpentine.JPG","crossite, djurleite, benitoite, neptunite, joaquinite-(Ce), natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)",{"id":598,"source_url":599,"license_code":334,"credit_html":600,"title":601,"description":602,"author":319,"original_width":603,"original_height":604},6490,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291427","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291427\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, neptunite, bénitoïte, natrolite 1100. FS2015.jpg","crossite, neptunite, benitoïte, natrolite : California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",1984,1622,{"id":606,"source_url":607,"license_code":334,"credit_html":608,"title":609,"description":602,"author":319,"original_width":610,"original_height":611},6491,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291428","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291428\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, neptunite, bénitoïte, natrolite 1100.FS2015.jpg",1975,1317,{"id":613,"source_url":614,"license_code":334,"credit_html":615,"title":616,"description":602,"author":319,"original_width":259,"original_height":617},6492,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291430","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291430\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, neptunite, bénitoïte, natrolite 7100.FS2015.jpg",1329,{"id":619,"source_url":620,"license_code":334,"credit_html":621,"title":622,"description":602,"author":319,"original_width":623,"original_height":624},6493,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291431","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291431\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, neptunite, bénitoïte, natrolite FS2015.jpg",1995,1439,{"id":626,"source_url":627,"license_code":334,"credit_html":628,"title":629,"description":602,"author":319,"original_width":630,"original_height":631},6494,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291434","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41291434\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, neptunite, bénitoïte, natrolite FS2015 1.jpg",1981,1765,{"id":633,"source_url":634,"license_code":308,"credit_html":635,"title":636,"description":637,"author":362,"original_width":320,"original_height":321},7294,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17017394","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17017394\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, neptunite, djurleite, natrolite.jpg","benitoite, neptunite, djurleite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":639,"source_url":640,"license_code":308,"credit_html":641,"title":642,"description":643,"author":362,"original_width":320,"original_height":321},7295,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137246","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137246\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, neptunite, joaquinite-(Ce) djurleite, natrolite.jpg","benitoite, neptunite, djurleite, joaquinite-(Ce), natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":645,"source_url":646,"license_code":298,"credit_html":647,"title":648,"description":649,"author":319,"original_width":320,"original_height":321},12631,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5543700","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5543700\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), benitoite, neptunite, natrolite 2.jpg","joaquinite-(Ce), benitoite, neptunite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":651,"source_url":652,"license_code":298,"credit_html":653,"title":654,"description":655,"author":319,"original_width":320,"original_height":321},12633,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701372","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701372\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, joaquinite-(Ce), natrolite 1.jpg","benitoite, joaquinite-(Ce), natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":657,"source_url":658,"license_code":308,"credit_html":659,"title":660,"description":655,"author":362,"original_width":661,"original_height":321},12636,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17017261","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17017261\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, joaquinite-(Ce), natrolite.jpg",3925,{"id":663,"source_url":664,"license_code":298,"credit_html":665,"title":666,"description":649,"author":319,"original_width":320,"original_height":321},15342,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5543860","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5543860\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), benitoite, neptunite, natrolite 3.jpg",{"id":668,"source_url":669,"license_code":298,"credit_html":670,"title":671,"description":672,"author":319,"original_width":673,"original_height":321},17429,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11723098","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11723098\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Neptunite, benitoite, natrolite.jpg","neptunite, benitoite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",4187,{"id":675,"source_url":676,"license_code":298,"credit_html":677,"title":678,"description":679,"author":319,"original_width":320,"original_height":321},17567,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701644","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11701644\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite, benitoite, neptunite, djurleite, natrolite.jpg","joaquinite-(Ce), benitoite, neptunite, djurleite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":681,"source_url":682,"license_code":298,"credit_html":683,"title":684,"description":685,"author":319,"original_width":320,"original_height":321},52554,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11723297","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11723297\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Neptunite, bénitoïte, joaquinite-(Ce) sur natrolite et serpentine (USA) 2.jpg","benitoite, neptunite, joaquinite-(Ce), djurleite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA - benitoite : 15,5 mm, neptunite : 43 mm",{"id":687,"source_url":688,"license_code":308,"credit_html":689,"title":690,"description":496,"author":362,"original_width":320,"original_height":321},52555,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13582498","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13582498\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte, neptunite, joaquinite-(Ce) (USA) 4.jpg",{"id":692,"source_url":693,"license_code":308,"credit_html":694,"title":695,"description":496,"author":362,"original_width":320,"original_height":321},52556,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13585364","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13585364\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte, neptunite, joaquinite-(Ce) sur natrolite (San-Benito Mine Californie - USA).jpg",{"id":697,"source_url":698,"license_code":308,"credit_html":699,"title":700,"description":701,"author":319,"original_width":320,"original_height":321},52557,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17448678","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17448678\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce), benitoite, neptunite, natrolite.jpg","joaquinite-(Ce), benitoite, neptunite, djurleite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USAj",{"id":703,"source_url":704,"license_code":308,"credit_html":705,"title":706,"description":707,"author":362,"original_width":320,"original_height":321},52558,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=19987714","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=19987714\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, bénitoïte, neptunite, joaquinite-(Ce), natrolite, serpentine 1.JPG","djurleite, benitoïte, neptunite, joaquinite-(Ce), natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org",{"id":709,"source_url":710,"license_code":308,"credit_html":711,"title":712,"description":713,"author":362,"original_width":320,"original_height":321},52559,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137698","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=21137698\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Crossite, bénitoïte, neptunite, joaquinite-(Ce), natrolite.jpeg","djurleite, benitoïte, neptunite, joaquinite-(Ce), natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (Locality at mindat.org)",{"id":715,"source_url":716,"license_code":298,"credit_html":717,"title":718,"description":719,"author":362,"original_width":320,"original_height":321},61656,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5311509","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5311509\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bénitoïte, neptunite, joaquinite-(Ce), natrolite 1 (USA).jpg","benitoite, neptunite, joaquinite-(Ce), natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":721,"source_url":722,"license_code":308,"credit_html":723,"title":724,"description":725,"author":362,"original_width":320,"original_height":321},61660,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13586043","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13586043\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Benitoite, neptunite, joaquinite-(Ce), natrolite.jpg","benitoite, joaquinite-(Ce), neptunite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA",{"id":727,"source_url":728,"license_code":308,"credit_html":729,"title":730,"description":731,"author":732,"original_width":733,"original_height":734},61661,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866025","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866025\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Joaquinite-(Ce)-Benitoite-89376.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJoaquinite-(Ce)\" class=\"extiw\" title=\"en:Joaquinite-(Ce)\">Joaquinite-(Ce)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBenitoite\" class=\"extiw\" title=\"en:Benitoite\">Benitoite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiablo_Range\" class=\"extiw\" title=\"en:Diablo Range\">Diablo Range\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Benito_County,_California\" class=\"extiw\" title=\"en:San Benito County, California\">San Benito County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3531.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Orange-brown Joaquinite-(Ce) xls together with blue Benitoite xls. Field of view 5 mm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",760,581,[736,743,748,752,756],{"id":737,"url":738,"label":739,"formula":740,"spacegroup":741,"year":742},1377,"\u002Fcif\u002F1377.cif","Hejny 2012 · Ba Ti Si3 O9 (1)","Ba Ti Si3 O9","P -6 c 2",2012,{"id":744,"url":745,"label":746,"formula":740,"spacegroup":747,"year":742},1383,"\u002Fcif\u002F1383.cif","Hejny 2012 · Ba Ti Si3 O9 (2)","P 3 1 c",{"id":749,"url":750,"label":751,"formula":740,"spacegroup":741,"year":199},1386,"\u002Fcif\u002F1386.cif","Fisher 1969",{"id":753,"url":754,"label":755,"formula":740,"spacegroup":741,"year":178},1387,"\u002Fcif\u002F1387.cif","Zachariasen 1930 · Ba Ti Si3 O9",{"id":757,"url":758,"label":759,"formula":760,"spacegroup":741,"year":178},1388,"\u002Fcif\u002F1388.cif","Zachariasen 1930 · Ba Si3 O9 Ti","Ba Si3 O9 Ti",[762],"Benitoide",[764,768,772,776,780,784,788,792,797,801,805,809,813,818,822,826,830,833,837,841,844,847,851,854,857,860,864,867,871,874],{"lang":765,"names":766},"ar",[767],"بينيتويت",{"lang":769,"names":770},"be-tarask",[771],"бэнітаіт",{"lang":773,"names":774},"ca",[775],"benitoïta",{"lang":777,"names":778},"cs",[779],"benitoit",{"lang":781,"names":782},"de",[783],"Benitoit",{"lang":785,"names":786},"es",[787],"Benitoíta",{"lang":789,"names":790},"eu",[791],"Benitoïta",{"lang":793,"names":794},"fa",[795,796],"بنی توئیت","بنیتوئیت",{"lang":798,"names":799},"fi",[800],"benitoiitti",{"lang":802,"names":803},"fr",[804],"bénitoïte",{"lang":806,"names":807},"he",[808],"בניטואיט",{"lang":810,"names":811},"it",[812],"benitoite",{"lang":814,"names":815},"ja",[816,817],"ベニトアイト","ベニト石",{"lang":819,"names":820},"ko",[821],"베니토아이트",{"lang":823,"names":824},"lt",[825],"Benitoitas",{"lang":827,"names":828},"mk",[829],"Бенитоит",{"lang":831,"names":832},"mn",[829],{"lang":834,"names":835},"nb",[836],"benitoitt",{"lang":838,"names":839},"nl",[840],"benitoiet",{"lang":842,"names":843},"nn",[836],{"lang":845,"names":846},"pl",[783],{"lang":848,"names":849},"pt",[850],"benitoíte",{"lang":852,"names":853},"ru",[829],{"lang":855,"names":856},"sk",[779],{"lang":858,"names":859},"sv",[779],{"lang":861,"names":862},"uk",[863],"Бенітоїт",{"lang":865,"names":866},"vi",[783],{"lang":868,"names":869},"zh",[870],"藍錐礦",{"lang":872,"names":873},"zh-hant",[870],{"lang":875,"names":876},"zh-tw",[877,870],"矽鋇鈦礦","Q411137",{"history":11,"applications":11}]