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Orthowalpurgite Mineral Data
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General Orthowalpurgite Information
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 Chemical Formula: |
(UO2)Bi4O4(AsO4)2•2(H2O) |
| Composition: |
Molecular Weight = 1,483.82 gm |
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Uranium 16.04 % U 18.20 % UO2 |
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Bismuth 56.34 % Bi 62.81 % Bi2O3 |
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Arsenic 10.10 % As 15.49 % As2O5 |
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Hydrogen 0.27 % H 2.43 % H2O |
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Oxygen 17.25 % O |
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______ ______ |
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100.00 % 98.92 % = TOTAL OXIDE |
| Empirical Formula: |
(UO2)Bi4O4(AsO4)2•2(H2O) |
| Environment: |
May have formed by weathering of emplectite, wittichenite or other Bi-bearing ore minerals. Dimorphous with walpugite. |
| IMA Status: |
Approved IMA 1995 |
| Locality: |
The Schmiedestollen, Wittichen, Black Forest, Germany. Link to MinDat.org Location Data. |
| Name Origin: |
It is an orthorhombic polymorph of walpurgite. |
| Name Pronunciation: |
Orthowalpurgite + Pronunciation  |
| Synonym: |
ICSD 80915 |
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IMA1994-024 |
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PDF 48-1889 |
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