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Spodiophyllite Mineral Data
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General Spodiophyllite Information
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 Chemical Formula: |
(Na,K)4(Mg,Fe++)3(Fe+++,Al)2(Si8O24) |
| Composition: |
Molecular Weight = 910.57 gm |
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Potassium 4.29 % K 5.17 % K2O |
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Sodium 7.57 % Na 10.21 % Na2O |
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Magnesium 6.01 % Mg 9.96 % MgO |
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Aluminum 1.48 % Al 2.80 % Al2O3 |
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Iron 13.80 % Fe 5.92 % FeO / 13.15 % Fe2O3 |
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Silicon 24.68 % Si 52.79 % SiO2 |
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Oxygen 42.17 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Na3KMg2.25Fe2+0.75Fe3+1.5Al0.5Si8O24 |
| Environment: |
Related to tainiolite? |
| IMA Status: |
Discredited IMA 1998 (Mica Nomenclature Subcommittee) - Valid Species (PreIMA) 1900 |
| Locality: |
Narsarsuk, Julianehaab distr., southern Greenland. Link to MinDat.org Location Data. |
| Name Origin: |
Named from the Greek for SPODIOS (color ash) and PYLLON (leaf) habit. |
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