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E. Fersman Mineralogica1 Museum, Russian Academy of Sciences, Moscow, Russia.","Named for its relationship to the previously described tsepinite-Na, with K dominant over Na. The root name is after Anatoliy Ivanovich Tsepin (b. 1946), physicist of the Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences (IGEM), specialist in X-ray spectroscopy and the electron-microprobe analysis of minerals, who initiated in the 1970s an electron-microprobe investigation of Labuntsovite Group minerals.","2025-08-11 12:14:50",[],[75,82,89,96],{"id":76,"name":77,"entrytype":9,"csystem":36,"ima_formula":78,"mindat_formula":79,"hmin":48,"hmax":48,"dmeas":80,"dcalc":81,"primary_image_id":11},26367,"Tsepinite-Ca","(Ca,K,Na)\u003Csub>2-x\u003C\u002Fsub>(Ti,Nb)\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>)(OH,O)\u003Csub>2\u003C\u002Fsub> · 4H\u003Csub>2\u003C\u002Fsub>O","(Ca,K,Na)\u003Csub>2-x\u003C\u002Fsub>(Ti,Nb)\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>)(OH,O)\u003Csub>2\u003C\u002Fsub>·4H\u003Csub>2\u003C\u002Fsub>O","2.73","2.72",{"id":83,"name":84,"entrytype":9,"csystem":36,"ima_formula":85,"mindat_formula":86,"hmin":48,"hmax":48,"dmeas":87,"dcalc":81,"primary_image_id":88},11013,"Tsepinite-Na","(Na,H\u003Csub>3\u003C\u002Fsub>O,K,Sr,Ba,◻)\u003Csub>2\u003C\u002Fsub>(Ti,Nb)\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>)(OH,O)\u003Csub>2\u003C\u002Fsub> · 3H\u003Csub>2\u003C\u002Fsub>O","Na\u003Csub>2\u003C\u002Fsub>(Ti,Nb)\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>)(OH,O)\u003Csub>2\u003C\u002Fsub>·3H\u003Csub>2\u003C\u002Fsub>O","2.74",13836,{"id":90,"name":91,"entrytype":9,"csystem":36,"ima_formula":92,"mindat_formula":93,"hmin":48,"hmax":48,"dmeas":94,"dcalc":95,"primary_image_id":11},27458,"Tsepinite-Sr","(Sr,Ba,K)(Ti,Nb)\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>)(OH,O)\u003Csub>2\u003C\u002Fsub> · 3H\u003Csub>2\u003C\u002Fsub>O","Sr(Ti,Nb)\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>)(OH,O)\u003Csub>2\u003C\u002Fsub>·3H\u003Csub>2\u003C\u002Fsub>O","2.67","2.63",{"id":97,"name":98,"entrytype":9,"csystem":36,"ima_formula":99,"mindat_formula":100,"hmin":101,"hmax":101,"dmeas":102,"dcalc":103,"primary_image_id":104},7359,"Vuoriyarvite-K","(K,Na,◻)\u003Csub>12\u003C\u002Fsub>Nb\u003Csub>8\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>O\u003Csub>8\u003C\u002Fsub> · 12-16H\u003Csub>2\u003C\u002Fsub>O","K\u003Csub>2\u003C\u002Fsub>(Nb,Ti)\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>)(O,OH)\u003Csub>2\u003C\u002Fsub>·4H\u003Csub>2\u003C\u002Fsub>O",4.5,"2.95","3.02",27673,[106],{"id":107,"name":108,"entrytype":9,"csystem":109,"ima_formula":110,"mindat_formula":110,"hmin":11,"hmax":11,"dmeas":111,"dcalc":112,"primary_image_id":11},46606,"Calciomurmanite","Triclinic","(Na,◻)\u003Csub>2\u003C\u002Fsub>Ca(Ti,Mg,Nb)\u003Csub>4\u003C\u002Fsub>[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]\u003Csub>2\u003C\u002Fsub>O\u003Csub>2\u003C\u002Fsub>(OH,O)\u003Csub>2\u003C\u002Fsub>(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>4\u003C\u002Fsub>","2.70","2.85",[],[115],{"id":116,"txt":117,"latitude":118,"longitude":119,"country":120},2689,"Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia",67.8808065,34.6817436,"Russia",[122,125,128,132],{"id":123,"year":29,"html":124,"doi":11},16133794,"Rozenberg, K.A., Rastsvetaeva, R.K., Chukanov, N.V., Pekov, I.V. (2002) Crystal Structure of the New Mineral Tsepinite-K.  Doklady Chemistry: 386(1-3): 246-250.",{"id":126,"year":30,"html":127,"doi":11},16722200,"Chukanov, N. V., Pekov, I. V., Zadov, A. E., Rosenberg, K. A., Rastsvetaeva, R. K., Krivovichev, S. V., Levitskay, L. A. (2003) New minerals tsepinite-K (K,Ba,Na)\u003Csub>2\u003C\u002Fsub>(Ti,Nb)\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>)(OH,O)\u003Csub>2\u003C\u002Fsub>·3H\u003Csub>2\u003C\u002Fsub>O and paratsepinite-Ba (Ba,Na,K)\u003Csub>2-x\u003C\u002Fsub>(Ti,Nb)\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>)(OH,O)\u003Csub>2\u003C\u002Fsub>·4H\u003Csub>2\u003C\u002Fsub>O and their relationship with other labuntsovite group members. \u003Ci>Zapiski Vserossijskogo Mineralogicheskogo Obshchestva\u003C\u002Fi>,  132 (1) 38-51 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FZVMO132N1_38.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":129,"year":130,"html":131,"doi":11},16133795,2008,"Zolotarev, A.A., Jr., Krivovichev, S.V. (2008) About symmetry of tsepinite-K. Zapiski RMO (Proceedings of the Russian Mineralogical Society): 137: 61-64.",{"id":133,"year":134,"html":135,"doi":11},16967814,2021,"(2021) Tsepinite-K. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002FTsepinite-K.pdf' class='refpdflink'>\u003C\u002Fa>",[],[138],{"id":139,"url":140,"label":141,"formula":142,"spacegroup":143,"year":30},13897,"\u002Fcif\u002F13897.cif","Rosenberg 2003","K.42 Na.2 Ca.2 (Ti2.8 Nb1.2) Sr.64 Si8 O32.02 Ba.14 H8.04","C 1 m 1",[145,146],"IMA2002-005","Tsepiniet-K",[148,152,157,160],{"lang":149,"names":150},"ca",[151],"tsepinita-K",{"lang":153,"names":154},"de",[155,156],"IMA 2002-005","Tsepinit-K",{"lang":158,"names":159},"eu",[7],{"lang":161,"names":162},"it",[163],"tsepinite-K","Q3999941",{"history":11,"applications":11}]