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Gageite Mineral Data
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General Gageite Information
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 Chemical Formula: |
(Mn,Mg,Zn)42Si16O54(OH)40 |
| Composition: |
Molecular Weight = 3,958.95 gm |
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Magnesium 7.74 % Mg 12.83 % MgO |
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Manganese 34.97 % Mn 45.15 % MnO |
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Zinc 6.94 % Zn 8.63 % ZnO |
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Silicon 11.35 % Si 24.28 % SiO2 |
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Hydrogen 1.02 % H 9.10 % H2O |
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Oxygen 37.99 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+25.2Mg12.6Zn4.2Si16O54(OH)40 |
| Environment: |
Metamorphosed zinc-manganese deposit. |
| IMA Status: |
Valid Species (Pre-IMA) 1911 |
| Locality: |
Franklin, Sussex Co., New Jersey, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Robert B. Gage, of Trenton, New Jersey, USA, who analyzed the first specimens. |
| Name Pronunciation: |
Gageite  |
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