Mineralogy Database

Vicanite-(Ce) Mineral Data

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General Vicanite-(Ce) Information

Help on Chemical  Formula: Chemical Formula: (Ca,Ce,La,Th)15As+++++(As+++0.5,Na0.5)Fe+++Si6B4O40F7
Help on Composition: Composition: Molecular Weight = 2,554.77 gm
   Sodium      0.45 %  Na    0.61 % Na2O
   Calcium    12.55 %  Ca   17.56 % CaO
   Lanthanum  13.59 %  La   15.94 % La2O3
   Cerium     19.20 %  Ce   22.48 % Ce2O3
   Thorium     9.08 %  Th   10.34 % ThO2
   Iron        2.19 %  Fe    3.13 % Fe2O3
   Silicon     6.60 %  Si   14.11 % SiO2
   Boron       1.69 %  B     5.45 % B2O3
   Arsenic     4.40 %  As    1.94 % As2O3 /  4.50 % As2O5
   Oxygen     25.05 %  O
   Fluorine    5.21 %  F     5.21 % F
                -   %   F    -2.19 % -O=F2    
             ______        ______ 
             100.00 %       99.06 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca8Ce3.5La2.5ThAsAs0.5Na0.5Fe3+Si6B4O40F7
Help on Environment: Environment: Inside a volcanic ejectum from a pyroclastic formation.
Help on IMA Status: IMA Status: Approved IMA 1995
Help on Locality: Locality: Vican (Vico lake) volcanic complex at Tre Croci, Ventralla (north of Rome), Latium, Veterbo provicne, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: After its locality.
Help on Name Pronunciation: Name Pronunciation: Vicanite-(Ce) Say VICANITE-(CE)
Help on Synonym: Synonym: IMA1991-050