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Uranmicrolite Mineral Data
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General Uranmicrolite Information
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 Chemical Formula: |
(U,Ca)2(Ta,Nb)2O6(OH) |
| Composition: |
Molecular Weight = 695.81 gm |
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Calcium 6.91 % Ca 9.67 % CaO |
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Uranium 27.37 % U 31.05 % UO2 |
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Tantalum 46.81 % Ta 57.16 % Ta2O5 |
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Niobium 2.67 % Nb 3.82 % Nb2O5 |
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Hydrogen 0.14 % H 1.29 % H2O |
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Oxygen 16.10 % O |
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______ ______ |
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100.00 % 102.99 % = TOTAL OXIDE |
| Empirical Formula: |
U0.8Ca1.2Ta1.8Nb0.2O6(OH) |
| IMA Status: |
Valid Species (Pre-IMA) 1957 |
| Locality: |
Fazenda Posse, Brejauba district, Municiop de Conceicao de Serro, Minas Gerias, Brazil. Link to MinDat.org Location Data. |
| Name Origin: |
Named for uranium and as a member of the microlite group. |
| Name Pronunciation: |
Uranmicrolite + Pronunciation  |
| Synonym: |
Djalmaite |
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ICSD 27778 |
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PDF 43-693 |
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