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Comancheite Mineral Data
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General Comancheite Information
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 Chemical Formula: |
Hg13(Cl,Br)8O9 |
| Composition: |
Molecular Weight = 3,079.74 gm |
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Mercury 84.67 % Hg 91.43 % HgO |
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Bromine 2.59 % Br 2.59 % Br |
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- %
Br -0.26 % -O=Br2 |
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Chlorine 8.06 % Cl 8.06 % Cl |
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- %
Cl -1.82 % -O=Cl2 |
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Oxygen 4.68 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Hg13Cl7BrO9 |
| Environment: |
Encrusting calcite. |
| IMA Status: |
Approved IMA 1981 |
| Locality: |
Mariposa mine, Terlingua district, Brewster County, Texas, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the Comanche Indians, who were the first miners in the Terligua district, using cinnabar for war paint. |
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