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Gaudefroyite Mineral Data
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General Gaudefroyite Information
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 Chemical Formula: |
Ca4Mn+++3-x(BO3)3(CO3)(O,OH)3 |
| Composition: |
Molecular Weight = 582.85 gm |
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Calcium 27.51 % Ca 38.49 % CaO |
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Manganese 23.56 % Mn 33.86 % Mn2O3 |
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Boron 5.56 % B 17.92 % B2O3 |
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Hydrogen 0.13 % H 1.16 % H2O |
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Carbon 2.06 % C 7.55 % CO2 |
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Oxygen 41.18 % O |
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______ ______ |
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100.00 % 98.97 % = TOTAL OXIDE |
| Empirical Formula: |
Ca4Mn3+2.5(BO3)3(CO3)O2.25(OH)0.75 |
| Environment: |
An uncommon hydrothermal mineral in manganese deposits. |
| IMA Status: |
Approved IMA 1964 |
| Locality: |
Tachgagalt, 17 km south-southwest of Ouarzazate, Anti-Atlas Mountains, Morocco. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Abbe Christophe Gaudefroy (1888-1971), French mineralogist who worked in Morocco. |
| Name Pronunciation: |
Gaudefroyite + Pronunciation  |
| Synonym: |
ICSD 66846 |
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PDF 17-154 |
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