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Congolite Mineral Data
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General Congolite Information
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 Chemical Formula: |
(Fe++,Mg,Mn)3B7O13Cl |
| Composition: |
Molecular Weight = 458.00 gm |
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Magnesium 4.78 % Mg 7.92 % MgO |
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Manganese 3.60 % Mn 4.65 % MnO |
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Iron 21.95 % Fe 28.24 % FeO |
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Boron 16.52 % B 53.20 % B2O3 |
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Chlorine 7.74 % Cl 7.74 % Cl |
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- %
Cl -1.75 % -O=Cl2 |
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Oxygen 45.41 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Fe2+1.8Mg0.9Mn2+0.3B7O13Cl |
| Environment: |
Found in insoluble residue from a drill core into sedimentary evaporites. |
| IMA Status: |
Approved IMA 1972 |
| Locality: |
Brazzaville, Congo. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Synonym: |
ICSD 60504 |
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PDF 25-2 |
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