Mineralpedia Details for Hausmannite
Hausmannite
Named to honor former Professor of Mineralogy at the University of Gottingen in Germany, Johan Friedrich Ludwig Hausmann. It is an uncommon mineral, but widespread and with many localities. Hausmannite occurs in hydrothermal veins and also forms from the metamorphism of manganese-rich rocks. Localities for Hausmannite include Germany, Sweden, Wales, England, the United States, Canada, Brazil, Australia, South Africa, and Namibia, and others including some of economic importance.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/hausmannite.pdf
- Formula
- Mn2+Mn3+2O4
- Crystal System
- Tetragonal
- Crystal Habit
- Massive - Granular, Pseudo Octohedral
- Cleavage
- Perfect, None, None
- Luster
- Sub Metallic
- Color
- brownish black, grayish
- Streak
- dark reddish brown
- Class
- Tetragonal - Ditetragonal Dipyramidal
- Fracture
- Uneven
- Hardness
- 5.5
- WebMineral
- View Hausmannite
- Mindat
- View Hausmannite
Hausmannite from N'Chwaning II mine, Kalahari Mn fields, Northern Cape Province, South Africa
Black, octahedral Hausmannite crystal to 1.5cm with Andradite.
Click thumbnail images for larger view.
