Mineralogy Database

Wenkite Mineral Data

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General Wenkite Information

Help on Chemical  Formula: Chemical Formula: Ba4Ca6(Si,Al)20O39(OH)2(SO4)3•n(H2O) (?)
Help on Composition: Composition: Molecular Weight = 2,317.71 gm
   Barium    21.92 %  Ba   24.48 % BaO
   Sodium     0.50 %  Na    0.67 % Na2O
   Calcium    9.51 %  Ca   13.31 % CaO
   Aluminum  11.99 %  Al   22.66 % Al2O3
   Silicon   11.63 %  Si   24.89 % SiO2
   Hydrogen   0.33 %  H     2.95 % H2O
   Sulfur     4.01 %  S    10.02 % SO3
   Chlorine   0.76 %  Cl    0.76 % Cl
               -   %   Cl   -0.17 % -O=Cl2   
   Oxygen    38.52 %  O
   Fluorine   0.82 %  F     0.82 % F
               -   %   F    -0.35 % -O=F2    
            ______        ______ 
            100.00 %      100.03 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba3.7Ca5.5Na0.5Si9.6Al10.3O38.9(OH)3FCl0.5(SO4)2.9�2.3(H2O)
Help on Environment: Environment: Formed between barite layers and calc-silicate rock, a product of strong metamorphism of limestones.
Help on IMA Status: IMA Status: Approved IMA 1962
Help on Locality: Locality: At Cava Mergozzoni, Candoglia, Piedmont, Ital. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Eduard Wenk (1907-), mineralogist and petrologist, University of Basel, Basel, Switzerland.
Help on Name Pronunciation: Name Pronunciation: Wenkite Say WENKITE
Help on Synonym: Synonym: ICSD 9338
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