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Ganophyllite Mineral Data
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General Ganophyllite Information
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 Chemical Formula: |
(K,Na)2(Mn,Al,Mg)8(Si,Al)12O29(OH)7•8-9(H2O) |
| Composition: |
Molecular Weight = 1,514.20 gm |
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Potassium 3.87 % K 4.67 % K2O |
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Sodium 0.76 % Na 1.02 % Na2O |
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Magnesium 2.41 % Mg 3.99 % MgO |
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Manganese 21.77 % Mn 28.11 % MnO |
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Aluminum 5.88 % Al 11.11 % Al2O3 |
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Silicon 16.69 % Si 35.71 % SiO2 |
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Hydrogen 1.60 % H 14.28 % H2O |
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Oxygen 47.02 % O |
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______ ______ |
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100.00 % 98.89 % = TOTAL OXIDE |
| Empirical Formula: |
K1.5Na0.5Mn2+6Mg1.5Si9Al3.3O29(OH)7�8.5(H2O) |
| Environment: |
Metamorphosed manganese deposit. |
| IMA Status: |
Valid Species (Pre-IMA) 1890 |
| Locality: |
Harstig mine, Pajsberg, near Persberg, Vermland, Sweden. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek for "luster" and "leaf" for the high luster on cleavage planes. |
| Name Pronunciation: |
Ganophyllite + Pronunciation  |
| Synonym: |
ICSD 64788 |
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PDF 21-359 |
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