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Volkonskoite Mineral Data
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General Volkonskoite Information
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 Chemical Formula: |
Ca0.3(Cr+++,Mg,Fe+++)2(Si,Al)4O10(OH)2•4(H2O) |
| Composition: |
Molecular Weight = 475.69 gm |
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Calcium 0.84 % Ca 1.18 % CaO |
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Magnesium 4.60 % Mg 7.63 % MgO |
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Aluminum 2.84 % Al 5.36 % Al2O3 |
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Chromium 13.12 % Cr 19.17 % Cr2O3 |
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Iron 3.52 % Fe 5.04 % Fe2O3 |
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Silicon 20.66 % Si 44.21 % SiO2 |
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Hydrogen 1.95 % H 17.42 % H2O |
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Oxygen 52.47 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca0.1Mg0.1Cr1.2Mg0.8Fe3+0.3Si3.5Al0.5O10(OH)2�3.6(H2O) |
| Environment: |
Epignetic mineral in sandstones, conglomerates, and red beds, commonly filling voids from the decomposition of organic material. |
| IMA Status: |
Valid Species (Pre-IMA) 1830 |
| Locality: |
Mt. Efimiatsk and elsewhere in the Okhansk region, Middle Kama River area, Perm Basin, Ural Mountians, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Prince A. Volkonskoi, Minister of the Imperial Court, Russia. |
| Name Pronunciation: |
Volkonskoite + Pronunciation  |
| Synonym: |
Volchonskoite |
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Wolchonskoite |
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