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Fluoro-magnesiohastingsite Mineral Data
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General Fluoro-magnesiohastingsite Information
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 Chemical Formula: |
(Na,K)Ca2(Mg,Fe+++,Ti)5(Si,Al)8O22F2 |
| Composition: |
Molecular Weight = 866.18 gm |
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Potassium 0.99 % K 1.20 % K2O |
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Sodium 1.33 % Na 1.79 % Na2O |
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Calcium 10.04 % Ca 14.05 % CaO |
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Magnesium 11.31 % Mg 18.75 % MgO |
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Titanium 0.72 % Ti 1.20 % TiO2 |
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Aluminum 6.98 % Al 13.18 % Al2O3 |
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Iron 4.51 % Fe 6.45 % Fe2O3 |
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Silicon 19.10 % Si 40.86 % SiO2 |
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Oxygen 40.64 % O |
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Fluorine 4.39 % F 4.39 % F |
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- %
F -1.85 % -O=F2 |
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______ ______ |
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100.00 % 100.02 % = TOTAL OXIDE |
| Empirical Formula: |
Na0.5K0.22Ca0.17Ca2Mg4.03Fe3+0.7Al0.13Ti0.13Si5.89Al2.11O22F2 |
| Environment: |
Found in small cavities in an altered hematite-rich xenolith in an abandoned trachyandesite quarry. Amphibole group. |
| IMA Status: |
Approved IMA 2005 (Dana # Added) |
| Locality: |
Uroi hill, Hunedoara district, Romania. Link to MinDat.org Location Data. |
| Name Origin: |
Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). |
| Synonym: |
IMA2005-002 |
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