Mineralpedia Details for Olsacherite
Olsacherite
Named in honor of Juan Augusto Olsacher, a former Professor of Mineralogy at Cordoba University in Cordoba, Argentina who studied selenium-rich minerals in Argentina. Olascherite is a rare mineral found in Bolivia, Argentina, and Italy among only a few others. It occurs as a secondary mineral in oxidized selenium-rich hydrothermal deposits. Olascherite is pyroelectric.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/olsacherite.pdf
- Formula
- Pb2(Se6+O4)(SO4)
- Crystal System
- Orthorhombic
- Crystal Habit
- Acicular
- Cleavage
- Good, Fair, None
- Luster
- Vitreous - Dull
- Color
- colorless
- Streak
- white
- Class
- Orthorhombic - Disphenoidal
- Fracture
- Brittle
- Hardness
- 3-3.5
- WebMineral
- View Olsacherite
- Mindat
- View Olsacherite
Olsacherite from El Dragón mine, Quijarro, Potosí Dept., Bolivia
Fine, very micro needles in white white mattes with minor Chalcomentie (blue) on metallic Krutaite matrix.
Click thumbnail images for larger view.
