General Fluoro-alumino-magnesiotaramite Information
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Chemical Formula: |
Na(CaNa)(Mg3Al2)(Si6Al2)O22F2 |
Composition: |
Molecular Weight = 882.71 gm |
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Sodium 4.58 % Na 6.18 % Na2O |
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Calcium 5.49 % Ca 7.69 % CaO |
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Magnesium 5.84 % Mg 9.68 % MgO |
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Titanium 0.16 % Ti 0.27 % TiO2 |
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Manganese 0.12 % Mn 0.16 % MnO |
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Aluminum 9.29 % Al 17.56 % Al2O3 |
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Iron 11.45 % Fe 9.20 % FeO / 6.15 % Fe2O3 |
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Silicon 19.09 % Si 40.84 % SiO2 |
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Hydrogen 0.11 % H 0.98 % H2O |
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Oxygen 41.62 % O |
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Fluorine 2.24 % F 2.24 % F |
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- %
F -0.94 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Mn2+0.02Na0.99Fe2+0.02Na0.77Ca1.21Fe2+1.11Mg2.12Al1.04Fe3+0.68Ti0.03Si6Al2
O22F1.04(OH)0.96 |
Environment: |
Replaced the amphibole formed under high-P eclogite facies conditions (floronyb�ite) when uplift and retrogression toward amphibolite-facies conditions occurred. Amphibole group |
IMA Status: |
Approved IMA 2006 (Dana # Added) |
Locality: |
Jianchang, Su-Lu coesite-eclogite province, China 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: |
IMA2006-025 |
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