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Glaucophane Mineral Data
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General Glaucophane Information
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 Chemical Formula: |
[ ]Na2(Mg3Al2)Si8O22(OH)2 |
| Composition: |
Molecular Weight = 783.54 gm |
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Sodium 5.87 % Na 7.91 % Na2O |
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Magnesium 9.31 % Mg 15.43 % MgO |
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Aluminum 6.89 % Al 13.01 % Al2O3 |
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Silicon 28.68 % Si 61.35 % SiO2 |
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Hydrogen 0.26 % H 2.30 % H2O |
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Oxygen 49.01 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Na2Mg3Al2(Si8O22)(OH)2 |
| Environment: |
Metamorphic blue shists. |
| IMA Status: |
Valid Species (Pre-IMA) 1845 |
| Locality: |
Common world wide. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek glaukos - "blue" and fanos - "appearing." |
| Name Pronunciation: |
Glaucophane + Pronunciation  |
| Synonym: |
ICSD 24433 |
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PDF 20-453 |
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