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Uranopolycrase

Named for its relation to polycrase-(Y) and for the uranium in its composition. In only a couple of locations worldwide, Uranopolycrase occurs at its type locality on Elba Island, Italy in a zoned pegmatite vein near a granodiorite contact. Uranopolycrase is quite radioactive.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/uranopolycrase.pdf
- Formula
- (U,Y)(Ti,Nb,Ta)2(O,OH)6
- Crystal System
- Orthorhombic
- Crystal Habit
- Euhedral Crystals
- Cleavage
- Good, None, None
- Luster
- Adamantine
- Color
- brown red
- Streak
- grayish brown
- Class
- Orthorhombic - Dipyramidal
- Hardness
- 5-6
- WebMineral
- View Uranopolycrase
- Mindat
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Uranopolycrase from Cavetta Bassa, Elba Isle, Livorno Province, Tuscany, Italy

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