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Fencooperite Mineral Data
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General Fencooperite Information
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 Chemical Formula: |
Ba6Fe+++3Si8O23(CO3)2Cl3•H2O |
| Composition: |
Molecular Weight = 1,800.97 gm |
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Barium 44.99 % Ba 50.23 % BaO |
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Aluminum 0.75 % Al 1.42 % Al2O3 |
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Iron 8.99 % Fe 12.86 % Fe2O3 |
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Silicon 12.63 % Si 27.02 % SiO2 |
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Hydrogen 0.11 % H 0.97 % H2O |
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Carbon 1.33 % C 4.89 % CO2 |
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Chlorine 3.15 % Cl 3.15 % Cl |
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- %
Cl -0.71 % -O=Cl2 |
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Oxygen 28.05 % O |
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______ ______ |
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100.00 % 99.82 % = TOTAL OXIDE |
| Empirical Formula: |
Ba5.9Fe3+2.9Si8.1O23.2Al0.5(CO3)2Cl1.6O1.4�0.97(H2O) |
| Environment: |
Gillespite-rich zones within sanbornite-quartz lenses. |
| IMA Status: |
Approved IMA 2000 (Dana # Added) |
| Locality: |
Esquire no. 7 claim, Fresno County, California and Trumbull Peak, Mariposa County, California, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Joseph Fenimore Cooper, Jr. (1937-), mineral collector of Santa Cruz, California, USA. |
| Synonym: |
IMA2000-023 |
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