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Nelenite Mineral Data
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General Nelenite Information
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 Chemical Formula: |
(Mn,Fe++)16Si12As+++3O36(OH)17 |
| Composition: |
Molecular Weight = 2,312.59 gm |
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Magnesium 0.11 % Mg 0.17 % MgO |
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Manganese 22.57 % Mn 29.14 % MnO |
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Zinc 2.83 % Zn 3.52 % ZnO |
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Iron 13.28 % Fe 17.09 % FeO |
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Silicon 14.57 % Si 31.18 % SiO2 |
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Arsenic 9.40 % As 12.40 % As2O3 |
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Hydrogen 0.72 % H 6.43 % H2O |
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Oxygen 36.53 % O |
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______ ______ |
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100.00 % 99.93 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+9.5Fe2+5.5ZnMg0.1As2.9Si12O36.3(OH)16.5 |
| Environment: |
In a metamorphosed stratiform zinc deposit. Dimorphous with schallerite. |
| IMA Status: |
Approved IMA 1984 |
| Locality: |
From Franklin, Sussex County, New Jersey, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Joseph A. Nelen, chemist at the Smithsonian Institution, Washington, D.C., USA. |
| Name Pronunciation: |
Nelenite  |
| Synonym: |
Ferroschallerite |
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