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Fluorophlogopite Mineral Data
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General Fluorophlogopite Information
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 Chemical Formula: |
KMg3(AlSi3)O10F2 |
| Composition: |
Molecular Weight = 415.82 gm |
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Potassium 6.86 % K 8.27 % K2O |
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Sodium 0.44 % Na 0.60 % Na2O |
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Lithium 0.13 % Li 0.29 % Li2O |
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Magnesium 16.83 % Mg 27.91 % MgO |
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Titanium 0.69 % Ti 1.15 % TiO2 |
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Manganese 0.13 % Mn 0.17 % MnO |
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Aluminum 5.06 % Al 9.56 % Al2O3 |
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Iron 0.94 % Fe 1.21 % FeO |
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Silicon 21.34 % Si 45.66 % SiO2 |
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Hydrogen 0.02 % H 0.15 % H2O |
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Oxygen 38.86 % O |
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Fluorine 8.68 % F 8.68 % F |
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- %
F -3.66 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
K0.73Na0.08Li0.04Mg2.88Fe2+0.07Li0.04Mn2+0.01Si3.16Al0.78Ti0.06O10.03F1.9(OH)0.07 |
| Environment: |
Occurs within interstitial, friable altered material in lava fissures and breccias. Mica group (1M polytype): C2/m; structure determined. |
| IMA Status: |
Approved IMA 2006 (Dana # Added) |
| Locality: |
Southwest flank of the Etnean Volcanic Complex, Biancavilla, Catania, Mt. Etna, Sicily, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the fluorine analog of phlogopite. |
| Synonym: |
IMA2006-011 |
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