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Thomsonite-Sr Mineral Data
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General Thomsonite-Sr Information
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 Chemical Formula: |
(Sr,Ca)2Na[Al5Si5O20]•7(H2O) |
| Composition: |
Molecular Weight = 892.94 gm |
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Sodium 2.57 % Na 3.47 % Na2O |
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Strontium 13.74 % Sr 16.25 % SrO |
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Calcium 2.69 % Ca 3.77 % CaO |
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Aluminum 15.11 % Al 28.55 % Al2O3 |
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Silicon 15.73 % Si 33.64 % SiO2 |
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Hydrogen 1.60 % H 14.32 % H2O |
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Oxygen 48.56 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Sr1.4Ca0.6NaAl5Si5O20•7.1(H2O) |
| Environment: |
Hydrothermal veinlets cutting natrolite-bearing core of a pegmatite dike. Thomsonite series zeolite; structure |
| IMA Status: |
Approved IMA 2000 (Dana # Added) |
| Locality: |
Rasvomchorr Mountain, Khibiny alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the Sr dominant analog of thomsonite-Ca. |
| Name Pronunciation: |
Thomsonite-Sr + Pronunciation  |
| Synonym: |
IMA2000-025 |
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