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Afwillite Mineral Data
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General Afwillite Information
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 Chemical Formula: |
Ca3Si2O4(OH)6 |
| Composition: |
Molecular Weight = 342.45 gm |
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Calcium 35.11 % Ca 49.13 % CaO |
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Silicon 16.40 % Si 35.09 % SiO2 |
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Hydrogen 1.77 % H 15.78 % H2O |
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Oxygen 46.72 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca3(Si2O4)(OH)6 |
| Environment: |
A product of contact metamorphism of limestones. |
| IMA Status: |
Valid Species (Pre-IMA) 1925 |
| Locality: |
From the Dutoitspan diamond mine, Kimberley, and the Wessels mine, near Kuruman, Cape Province, South Africa. Link to MinDat.org Location Data. |
| Name Origin: |
For Alpheus Fuller Williams (1874-1953), General Manager, DeBeers Consolidated Mines, Kimberley, South Africa. |
| Name Pronunciation: |
Afwillite + Pronunciation  |
| Synonym: |
ICSD 18 |
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PDF 29-330 |
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