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Bismutocolumbite Mineral Data
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General Bismutocolumbite Information
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 Chemical Formula: |
Bi(Nb,Ta)O4 |
| Composition: |
Molecular Weight = 387.89 gm |
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Tantalum 11.66 % Ta 14.24 % Ta2O5 |
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Niobium 17.96 % Nb 25.70 % Nb2O5 |
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Bismuth 53.88 % Bi 60.06 % Bi2O3 |
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Oxygen 16.50 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
BiNb0.75Ta0.25O4 |
| Environment: |
In a pegmatite. |
| IMA Status: |
Approved IMA 1992 |
| Locality: |
In the Danburitovaya mine, Malkhan Range, central Transbaikal, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
For BISMuth in its composition and relation to minerals of the "columbite-tantalite" series. |
| Name Pronunciation: |
Bismutocolumbite + Pronunciation  |
| Synonym: |
ICSD 74338 |
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IMA1991-003 |
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PDF 45-1372 |
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