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Okhotskite-(Mn++) Mineral Data
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General Okhotskite-(Mn++) Information
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 Chemical Formula: |
Ca2(Mn++,Mg)(Mn+++,Al,Fe+++)Si3O10(OH)4 |
| Composition: |
Molecular Weight = 530.54 gm |
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Calcium 14.35 % Ca 20.08 % CaO |
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Magnesium 1.37 % Mg 2.28 % MgO |
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Manganese 18.64 % Mn 9.36 % MnO / 16.37 % Mn2O3 |
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Aluminum 2.54 % Al 4.80 % Al2O3 |
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Iron 4.21 % Fe 6.02 % Fe2O3 |
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Silicon 15.88 % Si 33.98 % SiO2 |
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Hydrogen 0.78 % H 6.96 % H2O |
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Oxygen 42.22 % O |
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______ ______ |
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100.00 % 99.85 % = TOTAL OXIDE |
| Empirical Formula: |
Ca1.9Mn2+0.7Mg0.3Mn3+1.1Al0.5Fe3+0.4Si3O9.9(OH)4.1 |
| Environment: |
In network veinlets cutting hematite-rich ores. |
| IMA Status: |
Approved IMA 1987 |
| Locality: |
From the Kokuriki mine, at Hiyoshi, about 20 km north of Kitami City, Hikkaido, Japan. Link to MinDat.org Location Data. |
| Name Origin: |
Named in 1987 by Togari and Akasaka for the Sea of Okhotsk, along which the mine is located. |
| Name Pronunciation: |
Okhotskite-(Mn++) + Pronunciation  |
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