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Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 76340.","Hilgardite Group.","Named after its discovery locality, Tyret' station, Irkutian region, Russia.","2025-08-11 12:14:24",[],[72,80,89],{"id":73,"name":74,"entrytype":9,"csystem":35,"ima_formula":75,"mindat_formula":76,"hmin":45,"hmax":45,"dmeas":77,"dcalc":78,"primary_image_id":79},1902,"Hilgardite","Ca\u003Csub>2\u003C\u002Fsub>B\u003Csub>5\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>Cl · H\u003Csub>2\u003C\u002Fsub>O","Ca\u003Csub>2\u003C\u002Fsub>B\u003Csub>5\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>Cl·H\u003Csub>2\u003C\u002Fsub>O","2.67","2.69",11427,{"id":81,"name":82,"entrytype":9,"csystem":35,"ima_formula":83,"mindat_formula":84,"hmin":85,"hmax":86,"dmeas":87,"dcalc":88,"primary_image_id":11},8212,"Kurgantaite","CaSrB\u003Csub>5\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>Cl · H\u003Csub>2\u003C\u002Fsub>O","CaSr[B\u003Csub>5\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>]Cl·H\u003Csub>2\u003C\u002Fsub>O",6,6.5,"2.99","3.04",{"id":90,"name":91,"entrytype":9,"csystem":92,"ima_formula":93,"mindat_formula":94,"hmin":95,"hmax":95,"dmeas":11,"dcalc":96,"primary_image_id":97},35579,"Leucostaurite","Orthorhombic","Pb\u003Csub>2\u003C\u002Fsub>[B\u003Csub>5\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>]Cl · 0.5H\u003Csub>2\u003C\u002Fsub>O","Pb\u003Csub>2\u003C\u002Fsub>[B\u003Csub>5\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>]Cl·0.5H\u003Csub>2\u003C\u002Fsub>O",4," 5.071 ",14436,[],[],[101],{"id":102,"txt":103,"latitude":104,"longitude":105,"country":106},23029,"Tyret' railway station, Lena-Angara salt Basin, Irkutsk Oblast, Russia",53.6752731,102.310063,"Russia",[108,112,116,120],{"id":109,"year":110,"html":111,"doi":11},16126595,1964,"Kondrat'eva, V.V. (1964) X-ray diffraction studies of some minerals of the hilgardite group. Rentgenografia Mineral'nogo Syr'ia, Moscow ('Nedra'), 4, 10-18.",{"id":113,"year":114,"html":115,"doi":11},16126596,1968,"Davies, W.O., Machin, M.P. (1968) Strontiohilgardite-1Tc and tyretskite, a structural pair. American Mineralogist, 53, 2084-2087.",{"id":117,"year":118,"html":119,"doi":11},528107,1985,"Ghose, Subrata (1985) A new nomenclature for the borate minerals in the hilgardite (Ca2B5O9Cl·H2O)-tyretskite (Ca2B5O9OH·H2O) group. \u003Ci>American Mineralogist\u003C\u002Fi>,  70 (5-6) 636-637 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM70\u002FAM70_636.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":121,"year":122,"html":123,"doi":11},15418311,1996,"Grew, Edward S.; Anovitz, Lawrence M. - \u003Ci>Eds.\u003C\u002Fi> (1996) Boron - Mineralogy, Petrology and Geochemistry. \u003Ci>Reviews in Mineralogy\u003C\u002Fi> Vol. 33. Mineralogical Society of America p.862",[125],{"id":126,"source_url":127,"license_code":128,"credit_html":129,"title":130,"description":131,"author":132,"original_width":133,"original_height":134},24814,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=77340885","CC BY-SA 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=77340885\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tyretskite.jpg","Whitish-yellow crystals of the rare borate mineral tyretskite from the second known locality worldwide: Inder B Deposit, Atyrau, Atyrau Oblysy, Kazakhstan.","David Hospital",785,667,[],[137],"Tyretskiet",[139,144,148,152],{"lang":140,"names":141},"ca",[142,143],"tyrestskita","Tyretskita",{"lang":145,"names":146},"de",[147],"Tyretskit",{"lang":149,"names":150},"eu",[151],"Tiretskita",{"lang":153,"names":154},"it",[7],"Q4001223",{"history":11,"applications":11}]