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Sobotkite Mineral Data
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General Sobotkite Information
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 Chemical Formula: |
(K,Ca0.5)0.33(Mg,Al)3(Si3Al)O10(OH)2•1-5(H2O) |
| Composition: |
Molecular Weight = 441.54 gm |
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Potassium 0.89 % K 1.07 % K2O |
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Calcium 2.72 % Ca 3.81 % CaO |
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Magnesium 11.56 % Mg 19.17 % MgO |
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Aluminum 11.61 % Al 21.94 % Al2O3 |
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Silicon 19.08 % Si 40.82 % SiO2 |
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Hydrogen 1.60 % H 14.28 % H2O |
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Oxygen 52.54 % O |
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______ ______ |
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100.00 % 101.09 % = TOTAL OXIDE |
| Empirical Formula: |
K0.1Ca0.33(Mg0.7)3(Al0.3)Si3AlO10(OH)2•2.5(H2O) |
| Environment: |
Laterite deposit on ultra-basic rocks. Discredited in 1987 as being aluminum saponite |
| IMA Status: |
Discredited IMA 1987 - Approved IMA 1976 |
| Locality: |
Mt. Sobotka, Godolow-Jordanow massif, Wiry, Lower Silesia, Poland. Link to MinDat.org Location Data. |
| Name Origin: |
Named in 1976 for the locality. |
| Synonym: |
Discredited IMA 1987 |
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