Pyrophanite
Mineral MnTiO3
About it
Deep blood-red to black platy crystals, the manganese member of the ilmenite group, in manganese skarns and some granites. First found at Harstigen, Sweden.
- Type
- Mineral
- Group
- Oxide, ilmenite group
- Formula
- MnTiO3
- Hardness (Mohs)
- 5
- Specific gravity
- 4.5–4.6
- Streak
- ochre yellow
- Lustre
- submetallic, adamantine (diamond-like)
- Crystal system
- Trigonal
- Colours
- deep blood red, dark red, greenish black
- Transparency
- translucent, opaque
- Cleavage and fracture
- perfect in one direction
Typical values: real specimens vary. For more, see mindat.org.