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Donathite Mineral Data
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General Donathite Information
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Chemical Formula: |
(Fe++,Mg)(Cr,Fe+++)2O4 |
Composition: |
Molecular Weight = 222.61 gm |
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Magnesium 1.09 % Mg 1.81 % MgO |
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Chromium 35.04 % Cr 51.21 % Cr2O3 |
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Iron 35.12 % Fe 29.05 % FeO / 17.93 % Fe2O3 |
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Oxygen 28.75 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Fe2+0.9Mg0.1Cr1.5Fe3+0.5O4 |
Environment: |
Discredited as a mixture of two spinels, one cubic and one tetragonal. |
IMA Status: |
Discredited IMA 1998 - Published 1969 |
Locality: |
Hestmand� Island, Norway. Link to MinDat.org Location Data. |
Name Origin: |
Named for M. Donath, who described the material in I930. |
Synonym: |
Discredited |
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