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","(Ce,La,Ca)\u003Csub>4\u003C\u002Fsub>Mn(Ti,Fe)\u003Csub>3\u003C\u002Fsub>(Fe,Ti)(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>O\u003Csub>8\u003C\u002Fsub>",[18,19,20,21,22,23,24],"Ca","Ce","Fe","Mn","Si","Ti","O",[18,19,20,21,22,23,24],[19,23],"Al, Mg, Ca, Nb",[29],"APPROVED",2012,"1982","9","B","E","Monoclinic",5,15,"P21\u002Fm ","13.3722","5.7434","11.0862","100.580",4,1,2,"Coarse crystals and isolated anhedral grains.",6,3,"4.8","4.85","Resinous","Translucent","Brown","Black",[56,57],"black","brown",[57],"None Observed","Conchoidal","brittle","Biaxial","-","1.945","2.015","2.050","68","70",1.945,2.05,"none observed","Strong","Light brown to very dark brown, Z > Y > X","Metasomatite, that formed at the contact of an alkali-rich magma and a Mn-rich rock.","Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4227\u002F1.","Mn2+-dominant member of the chevkinite group.","Named after Dr. Christof Schäfer (b. 1961), amateur mineralogist of Mayen-Kürrenberg, specialist in the minerals of the Eifel volcanic area, who discovered the mineral.","2025-08-11 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quarries, Wingertsberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany",50.3907912,7.2755242,"Germany",[127,130,134,138],{"id":128,"year":30,"html":129,"doi":11},17080336,"Chukanov, N.V., Aksenov, S.M., Rastsvetaeva, R.K., Belakovskiy, D.I., Göttlicher, J., Britvin, S.N., Möckel, S. (2012) Christofschäferite (Ce), (Ce,La,Ca)4Mn2+(Ti,Fe3+)3(Fe3+,Fe2+,Ti)(Si2O7)2O8, a new chevkinite group mineral from the Eifel area, Germany. \u003Ci>Новые данные о минералах [New Data on Minerals]\u003C\u002Fi>,  47. 33-42 \u003Ca target='_blank' href='https:\u002F\u002Fwww.fmm.ru\u002Fimages\u002F5\u002F50\u002FNDM_2012_47_Chukanov.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":131,"year":30,"html":132,"doi":133},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":135,"year":30,"html":136,"doi":137},8452997,"Aksenov, S. M., Rastsvetaeva, R. K., Chukanov, N. V. (2012) Crystal structure features of christofschäferite-(Ce), a new mineral of chevkinite group. \u003Ci>Acta Crystallographica Section A Foundations of Crystallography\u003C\u002Fi>, 68.  \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0108767312096419'>doi:10.1107\u002Fs0108767312096419\u003C\u002Fa>","10.1107\u002Fs0108767312096419",{"id":139,"year":140,"html":141,"doi":11},16963684,2013,"(2013) Christofschäferite-(Ce). \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fhandbookofmineralogy.org\u002Fpdfs\u002Fchristofscha%CC%88ferite%E2%80%91Ce.pdf' class='refpdflink'>\u003C\u002Fa>",[],[144],{"id":145,"url":146,"label":147,"formula":148,"spacegroup":149,"year":30},2707,"\u002Fcif\u002F2707.cif","Chukanov 2012","Ce1.7 La1.48 Nd.168 Pr.04 Ca.568 Mn.76 Fe1.2 Ti2.935 Nb.09 Mg.015 Al.02 Si4 O22","P 1 21\u002Fm 1",[151,152,153],"Christofschaeferite-(Ce)","Christofschäferiet-(Ce)","IMA2011-107",[155,160,165,169],{"lang":156,"names":157},"ca",[158,159],"Christofschäferita-","christofschäferita-(Ce)",{"lang":161,"names":162},"de",[163,164],"Christofschäferit-(Ce)","IMA 2011-107",{"lang":166,"names":167},"eu",[158,168],"Christofschäferita-(Ce)",{"lang":170,"names":171},"it",[172],"christofschäferite-(Ce)","Q19833328",{"history":11,"applications":11}]