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Petscheckite Mineral Data
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General Petscheckite Information
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 Chemical Formula: |
U++++Fe++(Nb,Ta)2O8 |
| Composition: |
Molecular Weight = 651.70 gm |
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Uranium 36.52 % U 41.43 % UO2 |
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Tantalum 13.88 % Ta 16.95 % Ta2O5 |
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Niobium 21.38 % Nb 30.59 % Nb2O5 |
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Iron 8.57 % Fe 11.02 % FeO |
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Oxygen 19.64 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
UFe2+Nb1.5Ta0.5O8 |
| Environment: |
Petscheckite is hypothesized on theoretical grounds, having altered to oxypetscheckite and hydroxypetscheckite. |
| IMA Status: |
Approved IMA 1978 |
| Locality: |
Antsaoka I pegmatite, Berere district, Madagascar. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Eckhard Petsch (1939-), of Idar-Oberstein, Germany, who was a noteworthy prospector in Madagascar. |
| Name Pronunciation: |
Petscheckite + Pronunciation  |
| Synonym: |
Hydroxypetscheckite |
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Oxypetscheckite |
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