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Muscovite Mineral Data
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General Muscovite Information
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 Chemical Formula: |
KAl2(Si3Al)O10(OH,F)2 |
| Composition: |
Molecular Weight = 398.71 gm |
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Potassium 9.81 % K 11.81 % K2O |
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Aluminum 20.30 % Al 38.36 % Al2O3 |
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Silicon 21.13 % Si 45.21 % SiO2 |
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Hydrogen 0.46 % H 4.07 % H2O |
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Oxygen 47.35 % O |
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Fluorine 0.95 % F 0.95 % F |
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- %
F -0.40 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
KAl3Si3O10(OH)1.8F0.2 |
| Environment: |
Granites and pegmatites. |
| IMA Status: |
Valid Species (Pre-IMA) 1850 |
| Locality: |
Common world wide. Link to MinDat.org Location Data. |
| Name Origin: |
From Muscovy glass, alluding to the Russian province of Muscovy. |
| Name Pronunciation: |
Muscovite + Pronunciation  |
| Synonym: |
Binnite (Ba) |
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Fuchsite (Cr) |
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Isinglass |
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Potash Mica |
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