Mineralpedia Details for Torbernite
Torbernite
Named after Torbern Olof Bergmann, chemist, mineralogist, and a Professor of Chemistry at Uppsala University in Uppsala, Sweden. Torbernite is an uncommon mineral found at hundreds of localities although not usually in large amounts. It is a secondary mineral that forms in the oxidized zones of uranium-bearing copper deposits. The water content of Torbernite can vary with the relative humidity of the atmosphere. Torbernite is radioactive.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/torbernite.pdf
- Formula
- Cu(UO2)2(PO4)2ยท12H2O
- Crystal System
- Tetragonal
- Crystal Habit
- Tabular, Earthy, Foliated
- Cleavage
- Perfect, Distinct, None
- Luster
- Vitreous - Pearly
- Color
- green, grass green, leek green, apple green, siskin green
- Streak
- pale green
- Class
- Tetragonal - Ditetragonal Dipyramidal
- Fracture
- Brittle
- Hardness
- 2-2.5
- WebMineral
- View Torbernite
- Mindat
- View Torbernite
Torbernite from Wheal Basset, Redruth - St Day dist., Cornwall, England
Opaque green, tabular and modified crystals to 1mm.
Light pastel green, thin, platy - square to modified crystals to 1.5mm.
Torbernite from Redruth, Cornwall, England
Tabular crystal to 2mm.
Torbernite from Laluz, Sonora, Mexico
Green tabular crystals to 0.5mm.
Torbernite from San Salvador pit, Tyrone mine, New Mexico, United States
Pastel green thin tabular crystals in rosettes to parallel plates to 0.5mm.
Torbernite from Branchville quarry, Branchville, Fairfield Co., Connecticut, United States
- Special Info
- Radioactive!!
Green crystal plates of Torbernite, less than 1mm, on Quartz.
Torbernite from St. Just dist., Cornwall, England
Tiny, less than 1mm, green, square plates.
Torbernite from San Antonio de la Huerta, Sonora, Mexico
Pastel green thin tabular crystals to 1mm.
Torbernite from Shinkolobwe, Katanga, Democratic Republic of Congo
- Special Info
- Radioactive!!
Emerald green thin tabular crystals to 5mm. It's in fine shape.
