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Natrobistantite Mineral Data
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General Natrobistantite Information
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 Chemical Formula: |
(Na,Cs)Bi(Ta,Nb,Sb)4O12 |
| Composition: |
Molecular Weight = 1,101.75 gm |
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Cesium 3.62 % Cs 3.84 % Cs2O |
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Sodium 1.46 % Na 1.97 % Na2O |
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Tantalum 45.99 % Ta 56.15 % Ta2O5 |
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Niobium 8.43 % Nb 12.06 % Nb2O5 |
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Bismuth 20.86 % Bi 23.26 % Bi2O3 |
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Antimony 2.21 % Sb 2.65 % Sb2O3 |
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Oxygen 17.43 % O |
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______ ______ |
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100.00 % 99.93 % = TOTAL OXIDE |
| Empirical Formula: |
Na0.7Cs0.3Bi1.1Ta2.8NbSb0.2O12 |
| Environment: |
Replacing bismutotantalite in museum samples from a granitic pegmatite. |
| IMA Status: |
Approved IMA 1983 |
| Locality: |
Koktoky [Fuyan], Sinkiang-Uighur Autonomous Province, China. Link to MinDat.org Location Data. |
| Name Origin: |
For sodium (NATRium), BISmuth, and TANTalum in the chemical formula which deviates from the IMA pyrochlore nomenclature. |
| Name Pronunciation: |
Natrobistantite + Pronunciation  |
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