Mineralogy Database

Vanadoandrosite-(Ce) Mineral Data

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General Vanadoandrosite-(Ce) Information

Help on Chemical Formula: Chemical Formula: (Mn++,Ca)(REE)V+++AlMn++(Si2O7)(SiO4)O(OH)
Help on Composition: Composition: Molecular Weight = 580.77 gm
   Strontium   1.66 %  Sr    1.96 % SrO
   Calcium     4.07 %  Ca    5.70 % CaO
   Lanthanum   3.59 %  La    4.21 % La2O3
   Cerium      9.41 %  Ce   11.02 % Ce2O3
   Samarium    0.52 %  Sm    0.60 % Sm2O3
   Magnesium   0.13 %  Mg    0.21 % MgO
   Titanium    0.08 %  Ti    0.14 % TiO2
   Manganese   9.27 %  Mn   11.97 % MnO
   Aluminum    5.39 %  Al   10.18 % Al2O3
   Vanadium    9.74 %  V    14.32 % V2O3
   Iron        3.17 %  Fe    2.85 % FeO /  1.37 % Fe2O3
   Silicon    14.51 %  Si   31.04 % SiO2
   Hydrogen    0.17 %  H     1.55 % H2O
   Neodymium   2.48 %  Nd    2.90 % Nd2O3
   Oxygen     35.81 %  O
             ______        ______ 
             100.00 %      100.01 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+0.62Ca0.38Ce0.39La0.15Nd0.1Sm0.02Ca0.21Sr0.11V3+0.8Al0.16Mg0.03Ti0.01AlMn2+0.36 V3+0.31Fe2+0.23Fe3+0.1(OH)
Help on Environment: Environment: Found in and around quartz-rhodochrosite-sulphide veinlets cross-cutting the rhodochrosite ore in greenschist-facies Lower Carboniferous radiolarite. Vanadoandrosite-(Ce) has domina nt V+++ in M1 site. Epidote group
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Vielle Aure mining district, central Pyrenees, France Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the vanadiium analoge of androsite.
Help on Synonym: Synonym: IMA2004-015