Mineralpedia Details for Ferrotschermakite
Ferrotschermakite
- Formula
- [box]Ca2(Fe2+3AlFe3+)(Si6Al2)O22(OH)2
- Crystal System
- Monoclinic
- Cleavage
- Perfect, None, None
- Luster
- Vitreous (Glassy)
- Color
- green, dark green, black
- Streak
- greenish gray
- Class
- Monoclinic - Prismatic
- Fracture
- Brittle - Conchoidal
- Hardness
- 5-6
- WebMineral
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Ferrotschermakite from Dookie, Victoria, Australia
Rusty red fibrous Ferrotschermakite in a small void about 3mm wide.
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