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Cobaltarthurite Mineral Data
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General Cobaltarthurite Information
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 Chemical Formula: |
CoFe+++2(AsO4)2(OH)2•4(H2O) |
| Composition: |
Molecular Weight = 533.48 gm |
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Magnesium 0.46 % Mg 0.76 % MgO |
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Manganese 1.03 % Mn 1.33 % MnO |
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Iron 21.98 % Fe 31.43 % Fe2O3 |
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Cobalt 5.52 % Co 7.02 % CoO |
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Arsenic 28.09 % As 43.08 % As2O5 |
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Hydrogen 1.83 % H 16.38 % H2O |
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Oxygen 41.09 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Co0.5Mg0.1Fe3+0.1Mn2+0.1Fe3+2(AsO4)2(OH)1.7�4(H2O) |
| Environment: |
Secondary mineral in a near surface, sulfide-depleted lens (Dolores showing). (Co-dominant analogue of arthurite; structure) |
| IMA Status: |
Approved IMA 2002 (Dana # Added) |
| Locality: |
Patrana (a village about 10 km east of Mazzarron), Province of Murcia, SE Spain. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the Co-dominant member of the arthurite group. |
| Synonym: |
IMA2001-052 |
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