Mineralogy Database

Mosandrite Mineral Data

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General Mosandrite Information

Help on Chemical  Formula: Chemical Formula: Na(Na,Ca)2(Ca,Ce,Y)4(Ti,Nb,Zr)(Si2O7)2(O,F)2F3
Help on Composition: Composition: Molecular Weight = 913.39 gm
   Sodium      5.03 %  Na    6.79 % Na2O
   Calcium    13.16 %  Ca   18.42 % CaO
   Cerium     23.01 %  Ce   26.95 % Ce2O3
   Yttrium     4.87 %  Y     6.18 % Y2O3
   Zirconium   1.00 %  Zr    1.35 % ZrO2
   Titanium    3.15 %  Ti    5.25 % TiO2
   Niobium     3.05 %  Nb    4.37 % Nb2O5
   Silicon    12.30 %  Si   26.31 % SiO2
   Oxygen     27.15 %  O
   Fluorine    7.28 %  F     7.28 % F
                -   %   F    -3.07 % -O=F2    
             ______        ______ 
             100.00 %       99.82 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2Ca3Ce1.5Y0.5Ti0.6Nb0.3Zr0.1(Si2O7)2O1.5F3.5
Help on Environment: Environment: Alteration product of rinkite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1841
Help on Locality: Locality: Langesundfiord region of southern Norway. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Carl Gustav Mosander (1797-1858), Swedish chemist and mineralogist, who discovered several REE elements.
Help on Synonym: Synonym: Johnstrupite
  Rinkite
  Rinkolite