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Carraraite Mineral Data
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General Carraraite Information
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 Chemical Formula: |
Ca3Ge(OH)6(SO4)(CO3 )•12H2 O |
| Composition: |
Molecular Weight = 670.75 gm |
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Calcium 17.93 % Ca 25.08 % CaO |
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Germanium 10.83 % Ge 15.60 % GeO2 |
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Hydrogen 4.51 % H 40.29 % H2O |
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Carbon 1.61 % C 5.91 % CO2 |
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Sulfur 5.26 % S 13.13 % SO3 |
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Oxygen 59.87 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca3Ge(OH)6(SO4)1.1(CO3)0.9•12(H2O) |
| Environment: |
Hydrothermal alteration product of Cu-V sulfides in calcite vein cavities within the Carrara marble. A member of the thaumasite and ettringite groups. |
| IMA Status: |
Approved IMA 1998 (Dana # Added) |
| Locality: |
Gioia quarry, Colonnata valley, Carrara basin region, Apuan Alps, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Synonym: |
IMA1998-002 |
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