Mineralogy Database

Tilasite Mineral Data

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General Tilasite Information

Help on Chemical Formula: Chemical Formula: CaMg(AsO4)F
Help on Composition: Composition: Molecular Weight = 222.30 gm
   Calcium    18.03 %  Ca   25.23 % CaO
   Magnesium  10.93 %  Mg   18.13 % MgO
   Arsenic    33.70 %  As   51.70 % As2O5
   Oxygen     28.79 %  O
   Fluorine    8.55 %  F     8.55 % F
                -   %   F    -3.60 % -O=F2    
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaMg(AsO4)F
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1895
Help on Locality: Locality: Langan, Varmland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Daniel Tilas (1712-1772), Swedish mining engineer.
Help on Name Pronunciation: Name Pronunciation: Tilasite Say TILASITE
Help on Synonym: Synonym: ICSD 75618
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