Wodginite
Mineral MnSnTa2O8
About it
Heavy, dark brown to black, wedge-shaped crystals in tantalum-rich granite pegmatites. Named for Wodgina, Western Australia; also known from the Tanco mine at Bernic Lake, Manitoba.
- Type
- Mineral
- Group
- Oxide, wodginite group
- Formula
- MnSnTa2O8
- Hardness (Mohs)
- 5.5
- Specific gravity
- 7.19–7.36
- Streak
- brown
- Lustre
- submetallic
- Crystal system
- Monoclinic
- Colours
- dark brown, reddish brown, black
- Transparency
- opaque, translucent
- Cleavage and fracture
- none; uneven fracture
Typical values: real specimens vary. For more, see mindat.org.