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Turkestanite Mineral Data
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General Turkestanite Information
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 Chemical Formula: |
Th(Ca,Na)2(K1-x,[ ]x)Si8O20•n(H2O) |
| Composition: |
Molecular Weight = 879.42 gm |
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Potassium 2.67 % K 3.21 % K2O |
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Sodium 1.31 % Na 1.76 % Na2O |
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Calcium 6.84 % Ca 9.56 % CaO |
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Thorium 21.11 % Th 24.02 % ThO2 |
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Silicon 25.55 % Si 54.66 % SiO2 |
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Hydrogen 0.69 % H 6.15 % H2O |
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Oxygen 41.84 % O |
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______ ______ |
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100.00 % 99.36 % = TOTAL OXIDE |
| Empirical Formula: |
Th0.8Ca1.5Na0.5K0.6Si8O20•3(H2O) |
| Environment: |
Found in the albitized exocontact zone at the Djelisu and Dara-Pioz alkaline complexes. The calcium dominant analog of steacyite. |
| IMA Status: |
Approved IMA 1996 (Dana # Added) |
| Locality: |
Located 40 km apart north and south, respectively, of the Turkestan - Tadjikistan border. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the discovery locality, along the Turkestan Ridge. |
| Name Pronunciation: |
Turkestanite + Pronunciation  |
| Synonym: |
IMA1996-036 |
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