Mineralogy Database

Vastmanlandite-(Ce) Mineral Data

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General Vastmanlandite-(Ce) Information

Help on Chemical  Formula: Chemical Formula: (Ce,La)3CaAl2Mg2[Si2O7][SiO4]3F(OH)2
Help on Composition: Composition: Molecular Weight = 1,094.51 gm
   Calcium         3.37 %  Ca    4.71 % CaO
   Lanthanum      11.80 %  La   13.84 % La2O3
   Cerium         20.74 %  Ce   24.29 % Ce2O3
   Praeseodymium   1.80 %  Pr    2.11 % Pr2O3
   Samarium        0.41 %  Sm    0.48 % Sm2O3
   Gadolinium      0.14 %  Gd    0.17 % Gd2O3
   Yttrium         0.16 %  Y     0.21 % Y2O3
   Magnesium       3.38 %  Mg    5.60 % MgO
   Aluminum        4.63 %  Al    8.76 % Al2O3
   Iron            2.81 %   Fe    1.18 % FeO /  2.70 % Fe2O3
   Silicon        12.68 %  Si   27.12 % SiO2
   Phosphorus      0.03 %  P     0.06 % P2O5
   Hydrogen        0.18 %  H     1.65 % H2O
   Neodymium       5.53 %  Nd    6.46 % Nd2O3
   Oxygen         31.25 %  O
   Fluorine        1.08 %  F     1.08 % F
                    -   %   F    -0.45 % -O=F2    
                 ______        ______ 
                 100.00 %       99.95 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ce1.62La0.93Nd0.42Pr0.14Sm0.03Y0.02Gd0.01Ca0.92Mg1.52Fe2+0.18Fe3+0.37Al1.88Si4.94 P0.01O19(OH)2F0.62O0.38
Help on Environment: Environment: Material is from a now abandoned Fe mine, the Malmk�rra deposit, which consists of disseminated magnetite-amphibole skarn replacements in marble. Related to epidote group; structure determined.
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Lanthanide mineral deposits in V�stmanland county, Bergslagen mining region, south-central Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: The name is for V�stmanland, the county where the majority of the lanthanide deposits are found.
Help on Synonym: Synonym: IMA2002-025