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Kozulite Mineral Data
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General Kozulite Information
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 Chemical Formula: |
NaNa2Mn++4(Fe+++,Al)Si8O22(OH)2 |
| Composition: |
Molecular Weight = 948.04 gm |
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Sodium 7.27 % Na 9.81 % Na2O |
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Manganese 23.18 % Mn 29.93 % MnO |
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Aluminum 0.71 % Al 1.34 % Al2O3 |
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Iron 4.42 % Fe 6.32 % Fe2O3 |
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Silicon 23.70 % Si 50.70 % SiO2 |
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Hydrogen 0.21 % H 1.90 % H2O |
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Oxygen 40.50 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Na3Mn2+4Fe3+0.75Al0.25Si8O22(OH)2 |
| Environment: |
In bedded manganese deposits in a metamorphosed Cretaceous quartzite intruded by granodiorite. |
| IMA Status: |
Approved IMA 1969 |
| Locality: |
Tanahota mine, Iwate Prefecture, Japan. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Shukusuke Kozu (1880-1955), Japanese mineralogist, Tohoku University. |
| Name Pronunciation: |
Kozulite  |
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