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Magnesio-arfvedsonite Mineral Data
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General Magnesio-arfvedsonite Information
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 Chemical Formula: |
NaNa2(Mg4Fe++)Si8O22(OH)2 |
| Composition: |
Molecular Weight = 832.72 gm |
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Sodium 8.28 % Na 11.16 % Na2O |
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Magnesium 11.67 % Mg 19.36 % MgO |
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Iron 6.71 % Fe 9.59 % Fe2O3 |
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Silicon 26.98 % Si 57.72 % SiO2 |
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Hydrogen 0.24 % H 2.16 % H2O |
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Oxygen 46.11 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Na3Mg4Fe3+(Si8O22)(OH)2 |
| IMA Status: |
Valid Species (Pre-IMA) 1957 |
| Locality: |
Link to MinDat.org Location Data. |
| Name Origin: |
Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). |
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