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Cafarsite Mineral Data
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General Cafarsite Information
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 Chemical Formula: |
Ca8(Ti,Fe++,Fe+++,Mn)6-7(As+++O3)12•4(H2O) |
| Composition: |
Molecular Weight = 2,230.31 gm |
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Calcium 14.38 % Ca 20.11 % CaO |
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Titanium 7.51 % Ti 12.54 % TiO2 |
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Manganese 1.23 % Mn 1.59 % MnO |
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Iron 7.51 % Fe 6.44 % FeO / 3.58 % Fe2O3 |
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Arsenic 40.31 % As 53.22 % As2O3 |
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Hydrogen 0.36 % H 3.23 % H2O |
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Oxygen 28.69 % O |
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______ ______ |
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100.00 % 100.72 % = TOTAL OXIDE |
| Empirical Formula: |
Ca8Ti3.5Fe2+2Fe3+Mn2+0.5(AsO3)12•4(H2O) |
| Environment: |
On cleft faces in orthogneiss. |
| IMA Status: |
Approved IMA 1966 |
| Locality: |
West flank of Cherbadung [Pizzo Cervandone], Binntal, Valais, Switzerland. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the elements in the composition, CAlcium, iron (Ferrum), and ARSenic. |
| Name Pronunciation: |
Cafarsite + Pronunciation  |
| Synonym: |
ICSD 200144 |
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PDF 19-197 |
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