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Potassic-magnesiohastingsite Mineral Data
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General Potassic-magnesiohastingsite Information
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 Chemical Formula: |
(K,Na)Ca2(Mg,Fe++,Fe+++,Al)5(Si,Al)8O22(OH,Cl)2 |
| Composition: |
Molecular Weight = 925.11 gm |
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Potassium 2.24 % K 2.70 % K2O |
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Barium 0.15 % Ba 0.17 % BaO |
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Sodium 1.17 % Na 1.57 % Na2O |
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Calcium 8.23 % Ca 11.52 % CaO |
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Magnesium 5.49 % Mg 9.11 % MgO |
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Titanium 0.98 % Ti 1.64 % TiO2 |
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Manganese 0.36 % Mn 0.46 % MnO |
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Aluminum 7.12 % Al 13.45 % Al2O3 |
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Vanadium 0.06 % V 0.08 % V2O3 |
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Iron 14.19 % Fe 10.48 % FeO / 8.63 % Fe2O3 |
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Silicon 18.31 % Si 39.16 % SiO2 |
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Hydrogen 0.21 % H 1.88 % H2O |
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Oxygen 41.51 % O |
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______ ______ |
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100.00 % 100.85 % = TOTAL OXIDE |
| Empirical Formula: |
K0.53Na0.47Ca1.9Mn2+0.06Mg0.03Ba0.01Mg2.06Fe2+1.35Fe3+Al0.47Ti0.19V3+0.01Si6.03
Al1.97O22(OH)1.93O0.07 |
| Environment: |
Magmatic phase in blocks of subalkaline biotite-amphibole gabbro that makes up part of the serpentinite melang. Amphibole group. |
| IMA Status: |
Approved IMA 2005 (Dana # Added) |
| Locality: |
Lake Bolshoi Ishkul, Ilmen Mountains, Ilmen Nature Reserve, South Urals, Russia. 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: |
IMA2004-027b |
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