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indicates an unspecified minor substituent needed for charge balance.","(◻,Sb\u003Csup>3+\u003C\u002Fsup>,Na)\u003Csub>2\u003C\u002Fsub>Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub> · H\u003Csub>2\u003C\u002Fsub>O",[19,20,21,22],"Cs","Nb","O","H",[20,21,22],[20],[26],"APPROVED",2017,2018,"4","D","15","0","Isometric",32,222,"Fd-3m"," 10.4887",8,1153.9,"Tan to beige subhedral crystals, up to 1mm in size.","5.08","Natural material is porous.","Resinous","white","Tan to beige",[47,44],"brown",[44],"Irregular\u002FUneven","The mean refractive index, obtained from the Gladstone–Dale relationship  and the calculated density, is 2.074 (on the basis of the empirical formula).","A complex type LCT pegmatite hosted in a metadolomite.","Type material is deposited in the mineralogical collections of the Musée cantonal de Géologie, University of Lausanne,  Switzerland, catalogue numbers MGL 080141 and 080142, and the Museo di Storia Naturale, Università di Pisa, Italy","From the IMA nomenclature of the pyrochlore supergroup.","2025-08-11 12:15:19",[],[57,64,70,78,83,90,95,101,107,113,120],{"id":58,"name":59,"entrytype":9,"csystem":33,"ima_formula":60,"mindat_formula":61,"hmin":62,"hmax":62,"dmeas":11,"dcalc":63,"primary_image_id":11},51565,"Cesiokenopyrochlore","◻Nb\u003Csub>2\u003C\u002Fsub>(O,OH)\u003Csub>6\u003C\u002Fsub>Cs\u003Csub>1-x\u003C\u002Fsub>","◻Nb\u003Csub>2\u003C\u002Fsub>(O,OH)\u003Csub>6\u003C\u002Fsub>(Cs,◻)  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","5.398",{"id":102,"name":103,"entrytype":9,"csystem":33,"ima_formula":104,"mindat_formula":104,"hmin":62,"hmax":62,"dmeas":105,"dcalc":106,"primary_image_id":11},52584,"Hydroxynatropyrochlore","(Na,Ca,Ce)\u003Csub>2\u003C\u002Fsub>Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>(OH)","4.60","4.77",{"id":108,"name":109,"entrytype":9,"csystem":33,"ima_formula":110,"mindat_formula":111,"hmin":11,"hmax":11,"dmeas":11,"dcalc":112,"primary_image_id":11},43673,"Hydroxyplumbopyrochlore","(Pb\u003Csub>1.5\u003C\u002Fsub>◻\u003Csub>0.5\u003C\u002Fsub>)Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>(OH)"," (Pb\u003Csub>1.5\u003C\u002Fsub>◻\u003Csub>0.5\u003C\u002Fsub>)Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>(OH)","6.474",{"id":114,"name":115,"entrytype":9,"csystem":33,"ima_formula":116,"mindat_formula":116,"hmin":62,"hmax":62,"dmeas":117,"dcalc":118,"primary_image_id":119},40342,"Oxycalciopyrochlore","Ca\u003Csub>2\u003C\u002Fsub>Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>O","5.30","5.1",18440,{"id":121,"name":122,"entrytype":9,"csystem":33,"ima_formula":11,"mindat_formula":123,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":11},40344,"Oxyplumbopyrochlore","Pb\u003Csub>2\u003C\u002Fsub>Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>O",[],[],[127],{"id":128,"txt":129,"latitude":130,"longitude":131,"country":132},2260,"Antandrokomby pegmatite, Manandona Valley, Sahatsiho Ambohimanjaka, Ambositra District, Amoron'i Mania, Madagascar",-20.2402194,47.0220472,"Madagascar",2,[135,139,143,147,151],{"id":136,"year":27,"html":137,"doi":138},244910,"Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2017) New minerals and nomenclature modifications approved in 2017, CNMNC Newsletter No 37. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  81 (3) 737-742 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2017.081.039'>doi:10.1180\u002Fminmag.2017.081.039\u003C\u002Fa>","10.1180\u002Fminmag.2017.081.039",{"id":140,"year":28,"html":141,"doi":142},129749,"Biagioni, Cristian, Meisser, Nicolas, Nestola, Fabrizio, Pasero, Marco, Robyr, Martin, Roth, Philippe, Schnyder, Cédric, Gieré, Reto (2018) Hydrokenopyrochlore, (□,#)2Nb2O6·H2O, a new species of the pyrochlore supergroup from the Sahatany Pegmatite Field, Antananarivo Province, Madagascar. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  30 (4) 869-876 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002Fejm\u002F2018\u002F0030-2761'>doi:10.1127\u002Fejm\u002F2018\u002F0030-2761\u003C\u002Fa>","10.1127\u002Fejm\u002F2018\u002F0030-2761",{"id":144,"year":145,"html":146,"doi":11},16150851,2020,"Pezzotta, Federico, Preite, Domenico (2020) Idrokenopirocloro di Antandrokomby, Madagascar: una breve storia. \u003Ci>Micro\u003C\u002Fi>,  18 (1). 46-49",{"id":148,"year":149,"html":150,"doi":11},16964938,2022,"(2022) Hydrokenopyrochlore. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002FHydrokenopyrochlore.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":152,"year":153,"html":154,"doi":11},15897736,2023,"Larsen, Knut Edvard (2023) Minerals first described from Madagascar. \u003Ci>Norsk Mineralsymposium 2023\u003C\u002Fi>, 89-122",[],[],[158,159],"Hydrokenopyrochloor","IMA2017-005",[161,165,170],{"lang":162,"names":163},"ca",[164],"hidrocenopiroclor",{"lang":166,"names":167},"de",[168,169],"Hydrokenopyrochlor","IMA 2017-005",{"lang":171,"names":172},"eu",[173],"Hidrokenopirokloro","Q30336004",{"history":11,"applications":11}]