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Wenkite Mineral Data
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General Wenkite Information
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 Chemical Formula: |
Ba4Ca6(Si,Al)20O39(OH)2(SO4)3•n(H2O) (?) |
| Composition: |
Molecular Weight = 2,317.71 gm |
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Barium 21.92 % Ba 24.48 % BaO |
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Sodium 0.50 % Na 0.67 % Na2O |
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Calcium 9.51 % Ca 13.31 % CaO |
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Aluminum 11.99 % Al 22.66 % Al2O3 |
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Silicon 11.63 % Si 24.89 % SiO2 |
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Hydrogen 0.33 % H 2.95 % H2O |
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Sulfur 4.01 % S 10.02 % SO3 |
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Chlorine 0.76 % Cl 0.76 % Cl |
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- %
Cl -0.17 % -O=Cl2 |
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Oxygen 38.52 % O |
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Fluorine 0.82 % F 0.82 % F |
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- %
F -0.35 % -O=F2 |
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______ ______ |
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100.00 % 100.03 % = TOTAL OXIDE |
| Empirical Formula: |
Ba3.7Ca5.5Na0.5Si9.6Al10.3O38.9(OH)3FCl0.5(SO4)2.9�2.3(H2O) |
| Environment: |
Formed between barite layers and calc-silicate rock, a product of strong metamorphism of limestones. |
| IMA Status: |
Approved IMA 1962 |
| Locality: |
At Cava Mergozzoni, Candoglia, Piedmont, Ital. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Eduard Wenk (1907-), mineralogist and petrologist, University of Basel, Basel, Switzerland. |
| Name Pronunciation: |
Wenkite  |
| Synonym: |
ICSD 9338 |
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PDF 19-1418 |
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