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Koashvite Mineral Data
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General Koashvite Information
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 Chemical Formula: |
Na6(Ca,Mn)(Ti,Fe)Si6O18•(H2O) |
| Composition: |
Molecular Weight = 711.83 gm |
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Sodium 19.38 % Na 26.12 % Na2O |
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Calcium 2.82 % Ca 3.94 % CaO |
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Titanium 3.36 % Ti 5.61 % TiO2 |
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Manganese 3.86 % Mn 4.98 % MnO |
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Iron 3.92 % Fe 5.61 % Fe2O3 |
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Silicon 23.67 % Si 50.65 % SiO2 |
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Hydrogen 0.28 % H 2.53 % H2O |
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Oxygen 42.71 % O |
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______ ______ |
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100.00 % 99.44 % = TOTAL OXIDE |
| Empirical Formula: |
Na6Ca0.5Mn2+0.5Ti0.5Fe3+0.5Si6O18•(H2O) |
| Environment: |
In alkalic pegmatites. |
| IMA Status: |
Approved IMA 1974 |
| Locality: |
Mt. Koashva, Khibiny massif, Kola, Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Koashvite + Pronunciation  |
| Synonym: |
ICSD 86517 |
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PDF 27-669 |
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