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Sodalite Mineral Data
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General Sodalite Information
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 Chemical Formula: |
Na8Al6Si6O24Cl2 |
| Composition: |
Molecular Weight = 969.21 gm |
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Sodium 18.98 % Na 25.58 % Na2O |
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Aluminum 16.70 % Al 31.56 % Al2O3 |
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Silicon 17.39 % Si 37.20 % SiO2 |
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Chlorine 7.32 % Cl 7.32 % Cl |
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- %
Cl -1.65 % -O=Cl2 |
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Oxygen 39.62 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Na8Al6Si6O24Cl2 |
| Environment: |
Formed in nepheline syenites, phonolites, and related rock types. In metasomatized calcareous rocks, and in cavities in ejected volcanic blocks. |
| IMA Status: |
Valid Species (Pre-IMA) 1811 |
| Locality: |
Il�maussaq Massif, Greenland. Link to MinDat.org Location Data. |
| Name Origin: |
Named from its chemical composition. |
| Name Pronunciation: |
Sodalite  |
| Synonym: |
Hackmanite - Red variety |
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