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Y = b.","An edgrewite-bearing zone of endoskarn at the contact of a large altered calciferous xenolith within ignimbrites of the Upper Chegem Caldera, Russia.","Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, catalogue number 4163\u002F1.\r\n","F-dominant analogue of chegemite","For the mineral chegemite and its fluorine content.","2025-08-11 12:15:09",[],[78,85,93,99,106],{"id":79,"name":80,"entrytype":9,"csystem":30,"ima_formula":81,"mindat_formula":81,"hmin":43,"hmax":44,"dmeas":82,"dcalc":83,"primary_image_id":84},39004,"Chegemite","Ca\u003Csub>7\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","2.86","2.892",5323,{"id":86,"name":87,"entrytype":9,"csystem":88,"ima_formula":89,"mindat_formula":90,"hmin":43,"hmax":91,"dmeas":11,"dcalc":92,"primary_image_id":11},42491,"Edgrewite","Monoclinic","Ca\u003Csub>9\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>F\u003Csub>2\u003C\u002Fsub>","Ca\u003Csub>9\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>F\u003Csub>2\u003C\u002Fsub> ",6.5,"2.919",{"id":94,"name":95,"entrytype":9,"csystem":88,"ima_formula":96,"mindat_formula":97,"hmin":43,"hmax":44,"dmeas":11,"dcalc":98,"primary_image_id":11},42740,"Hydroxyledgrewite","Ca\u003Csub>9\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","Ca\u003Csub>9\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub> ","2.918",{"id":100,"name":101,"entrytype":9,"csystem":88,"ima_formula":102,"mindat_formula":102,"hmin":103,"hmax":44,"dmeas":11,"dcalc":104,"primary_image_id":105},39209,"Kumtyubeite","Ca\u003Csub>5\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>F\u003Csub>2\u003C\u002Fsub>",5,"2.866",13751,{"id":107,"name":108,"entrytype":9,"csystem":88,"ima_formula":109,"mindat_formula":110,"hmin":103,"hmax":44,"dmeas":111,"dcalc":112,"primary_image_id":113},3387,"Reinhardbraunsite","Ca\u003Csub>5\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","Ca\u003Csub>5\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH,F)\u003Csub>2\u003C\u002Fsub>","2.85","2.885",20707,[],[],[117],{"id":118,"txt":119,"latitude":120,"longitude":121,"country":122},267807,"Xenolith no. 1, Lakargi Mountain, Upper Chegem volcanic caldera (Verkhnechegemskaya caldera), Chegemsky District, Kabardino-Balkaria, Russia",43.2,43.1,"Russia",[124,128,132],{"id":125,"year":25,"html":126,"doi":127},244252,"Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2012) New minerals and nomenclature modifications approved in 2012. CNMNC Newsletter No 13. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  76 (3) 807-817 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2012.076.3.26'>doi:10.1180\u002Fminmag.2012.076.3.26\u003C\u002Fa> \u003Ca target='_blank' href='http:\u002F\u002Fcnmnc.units.it\u002FCNMNC%20NEWSLETTER%2013.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.2012.076.3.26",{"id":129,"year":26,"html":130,"doi":131},65257,"Galuskina, Irina O., Krüger, Biljana, Galuskin, Evgeny V., Armbruster, Thomas, Gazeev, Viktor M., Włodyka, Roman, Dulski, Mateusz, Dzierżanowski, Piotr (2015) Fluorchegemite, Ca\u003Csub>7\u003C\u002Fsub>(SiO\u003C\u002Fsub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>F\u003Csub>2\u003C\u002Fsub>, a new mineral from the edgrewite-bearing endoskarn zone of an altered xenolith in ignimbrites from upper Chegem caldera, Northern Caucasus, Kabardino-Balkaria, Russia: occurrence, crystal structure, and new data on the mineral assemblages. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  53 (2) 325-344 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3749\u002Fcanmin.1400084'>doi:10.3749\u002Fcanmin.1400084\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FCM53_325.pdf' class='refpdflink'>\u003C\u002Fa>","10.3749\u002Fcanmin.1400084",{"id":133,"year":134,"html":135,"doi":11},16964389,2016,"(2016) Fluorchegemite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Ffluorchegemite.pdf' class='refpdflink'>\u003C\u002Fa>",[],[],[139,140,141,142],"Fluorchegemiet","IMA2011-112","UM2009-27-SiO:CaFH","Unnamed (F-analogue of Chegemite)",[144,148,153,157],{"lang":145,"names":146},"ca",[147],"fluorchegemita",{"lang":149,"names":150},"de",[151,152],"Fluorchegemit","IMA 2011-112",{"lang":154,"names":155},"eu",[156],"Fluorchegemita",{"lang":158,"names":159},"it",[160],"fluorchegemite","Q19833667",{"history":11,"applications":11}]