Mineralpedia Details for Fredrikssonite
Fredrikssonite
- Formula
- Mg2Mn3+O2(BO3)
- Crystal System
- Orthorhombic
- Crystal Habit
- Prismatic
- Cleavage
- Poor, Indistinct, None
- Luster
- Vitreous (Glassy)
- Color
- reddish brown
- Streak
- yellowish brown
- Class
- Orthorhombic - Dipyramidal
- Hardness
- 6
- WebMineral
- View Fredrikssonite
- Mindat
- View Fredrikssonite
Fredrikssonite from Långban, Filipstad, Värmland, Sweden
- Special Info
- Type Locality
Blackish thin, long prismatic crystals suspended in matrix. Filipstad is the only locality for this minerals.
Click thumbnail images for larger view.
