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Thomsonite-Ca Mineral Data
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General Thomsonite-Ca Information
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 Chemical Formula: |
NaCa2Al5Si5O20•6(H2O) |
| Composition: |
Molecular Weight = 806.56 gm |
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Sodium 2.85 % Na 3.84 % Na2O |
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Calcium 9.94 % Ca 13.91 % CaO |
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Aluminum 16.73 % Al 31.60 % Al2O3 |
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Silicon 17.41 % Si 37.25 % SiO2 |
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Hydrogen 1.50 % H 13.40 % H2O |
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Oxygen 51.58 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
NaCa2Al5Si5O20•6(H2O) |
| Environment: |
Found in cavities in lava and in amygdaloidal igneous rocks. |
| IMA Status: |
Valid Species (Pre-IMA) 1820 |
| Locality: |
Kilpatrick Hills, Bunbarton, Scotland. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the Scottish chemist, T. Thomson (1773-1852). |
| Name Pronunciation: |
Thomsonite-Ca + Pronunciation  |
| Synonym: |
Bagotite |
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Thomsonite |
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