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Ferroholmquistite Mineral Data
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General Ferroholmquistite Information
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 Chemical Formula: |
[ ](Li2Fe++3Al2)Si8O22(OH)2 |
| Composition: |
Molecular Weight = 808.43 gm |
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Potassium 0.05 % K 0.06 % K2O |
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Sodium 0.11 % Na 0.15 % Na2O |
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Lithium 1.61 % Li 3.47 % Li2O |
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Magnesium 4.42 % Mg 7.33 % MgO |
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Manganese 0.14 % Mn 0.18 % MnO |
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Aluminum 6.31 % Al 11.92 % Al2O3 |
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Iron 11.81 % Fe 15.20 % FeO |
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Silicon 27.79 % Si 59.46 % SiO2 |
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Hydrogen 0.25 % H 2.20 % H2O |
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Oxygen 47.44 % O |
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Fluorine 0.07 % F 0.07 % F |
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- %
F -0.03 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
K0.01Na0.01Li1.88Mg0.08Na0.03Fe2+0.01Al1.89Fe2+1.7Mg1.39Mn2+0.02Si8O22(OH)1.97F0.03 |
| Environment: |
Metasomatism around highly fractionated lithium-rich pegmatites that intrude amphibolites. |
| IMA Status: |
Approved IMA 1978 |
| Locality: |
Greenbushes pegmatite (Western Australia). Link to MinDat.org Location Data. |
| Name Origin: |
The name reflects its composition and relationship to holmquistite.. |
| Name Pronunciation: |
Ferroholmquistite + Pronunciation  |
| Synonym: |
IMA2004-030 |
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