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Fluoro-edenite Mineral Data
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General Fluoro-edenite Information
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 Chemical Formula: |
NaCa2Mg5Si7AlO22(F,OH)2 |
| Composition: |
Molecular Weight = 837.03 gm |
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Potassium 0.93 % K 1.13 % K2O |
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Sodium 2.47 % Na 3.33 % Na2O |
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Calcium 7.66 % Ca 10.72 % CaO |
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Magnesium 13.65 % Mg 22.63 % MgO |
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Aluminum 1.93 % Al 3.65 % Al2O3 |
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Iron 2.00 % Fe 1.72 % FeO / 0.95 % Fe2O3 |
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Silicon 24.83 % Si 53.12 % SiO2 |
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Hydrogen 0.04 % H 0.32 % H2O |
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Oxygen 42.63 % O |
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Fluorine 3.86 % F 3.86 % F |
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- %
F -1.62 % -O=F2 |
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______ ______ |
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100.00 % 99.81 % = TOTAL OXIDE |
| Empirical Formula: |
Na0.9K0.2Ca1.6Mg4.7Fe2+0.2Fe3+0.1Si7.4Al0.6O22F1.7(OH)0.3 |
| Environment: |
Gray-red altered benmoreitic lavas and other andesites crystallized from late-stage hydrothermal fluids. |
| IMA Status: |
Approved IMA 1999 (Dana # Added) |
| Locality: |
Etnean Volcanic Complex, Catania, Italy., Ishigamiyama lava dome of the Kimpo volcano, Kumamoto, southwest Japan. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the fluorine dominant member of the edenite series. |
| Synonym: |
Fluor edenite |
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IMA1994-059 |
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IMA2000-049 |
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