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Ekatite Mineral Data
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General Ekatite Information
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 Chemical Formula: |
(Fe+++,Fe++,Zn)12(OH)6[AsO3]6[AsO3,HOSiO3]2 |
| Composition: |
Molecular Weight = 1,761.38 gm |
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Zinc 2.97 % Zn 3.70 % ZnO |
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Iron 35.51 % Fe 21.21 % FeO / 27.20 % Fe2O3 |
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Silicon 0.96 % Si 2.05 % SiO2 |
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Arsenic 32.33 % As 42.68 % As2O3 |
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Hydrogen 0.35 % H 3.12 % H2O |
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Oxygen 27.89 % O |
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______ ______ |
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100.00 % 99.95 % = TOTAL OXIDE |
| Empirical Formula: |
Fe3+6Fe2+5.2Zn0.8(OH)6.1(AsO3)7.6(SiO3)0.6 |
| Environment: |
Oxidation product occurring on a matrix of chalcocite and etched quartz. |
| IMA Status: |
Approved IMA 1998 (Dana # Added) |
| Locality: |
Tsumeb mine, Namibia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Dieter Ekat (1935-1996), Namibian mining engineer. |
| Synonym: |
IMA1998-024 |
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