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Potassic-chloropargasite Mineral Data
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General Potassic-chloropargasite Information
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 Chemical Formula: |
(K,Na)Ca2(Mg,Fe2+)4Al(Si6Al2O22)(Cl,OH)2 |
| Composition: |
Molecular Weight = 930.36 gm |
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Potassium 2.52 % K 3.04 % K2O |
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Sodium 0.99 % Na 1.33 % Na2O |
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Calcium 8.18 % Ca 11.45 % CaO |
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Magnesium 5.49 % Mg 9.10 % MgO |
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Aluminum 7.83 % Al 14.80 % Al2O3 |
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Iron 13.21 % Fe 16.99 % FeO |
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Silicon 18.11 % Si 38.75 % SiO2 |
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Hydrogen 0.10 % H 0.87 % H2O |
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Chlorine 4.19 % Cl 4.19 % Cl |
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- %
Cl -0.95 % -O=Cl2 |
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Oxygen 39.38 % O |
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______ ______ |
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100.00 % 99.57 % = TOTAL OXIDE |
| Empirical Formula: |
K0.6Na0.4Ca1.9Mg2.1Fe2+2.2Si6Al2.7O22Cl1.1(OH)0.9 |
| Environment: |
Granulite facies metamorphic complex. (amphibole group) |
| IMA Status: |
Approved IMA 2002 (Dana # Added) |
| Locality: |
Elgoras Mountian, Sal'nye Tundry massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named as K-rich chloroparagasite as per IMA-approved amphibole nomenclature. |
| Synonym: |
Chloroparagasite - K bearing |
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IMA2001-036 |
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IMA2001-044?? |
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