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Lepidolite Mineral Data
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General Lepidolite Information
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 Chemical Formula: |
K(Li,Al)3(Si,Al)4O10(F,OH)2 |
| Composition: |
Molecular Weight = 388.30 gm |
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Potassium 10.07 % K 12.13 % K2O |
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Lithium 3.58 % Li 7.70 % Li2O |
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Aluminum 6.95 % Al 13.13 % Al2O3 |
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Silicon 28.93 % Si 61.89 % SiO2 |
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Hydrogen 0.26 % H 2.32 % H2O |
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Oxygen 45.32 % O |
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Fluorine 4.89 % F 4.89 % F |
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- %
F -2.06 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
KLi2AlSi4O10F(OH) |
| Environment: |
Lithia-bearing pegmatites. |
| IMA Status: |
Valid Species (Pre-IMA) 1792 |
| Locality: |
Pala, San Diego Co., California, USA. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek lepidion - "scale" and lithos - "stone." |
| Name Pronunciation: |
Lepidolite + Pronunciation  |
| Synonym: |
Lithium Mica |
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