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Nichromite Mineral Data
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General Nichromite Information
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 Chemical Formula: |
(Ni,Co,Fe++)(Cr,Fe+++,Al)2O4 |
| Composition: |
Molecular Weight = 220.53 gm |
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Aluminum 3.67 % Al 6.94 % Al2O3 |
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Chromium 30.65 % Cr 44.80 % Cr2O3 |
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Iron 12.66 % Fe 6.52 % FeO / 10.86 % Fe2O3 |
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Cobalt 10.69 % Co 13.59 % CoO |
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Nickel 13.31 % Ni 16.93 % NiO |
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Oxygen 29.02 % O |
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______ ______ |
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100.00 % 99.64 % = TOTAL OXIDE |
| Empirical Formula: |
Ni0.5Co0.4Fe2+0.2Cr1.3Fe3+0.3Al0.3O4 |
| Environment: |
Replacing chromite in a small tabular nickel deposit at the contact between quartzite and serpentinized ultramafics. |
| IMA Status: |
Approved IMA 1978 |
| Locality: |
Bon Accord deposit, Barberton, Transvaal, South Africa. Link to MinDat.org Location Data. |
| Name Origin: |
Named for chromite with dominant nickel, Ni. |
| Name Pronunciation: |
Nichromite + Pronunciation  |
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