Mineralpedia Details for Orientite
Orientite
- Formula
- Ca8Mn3+10(SiO4)3(Si3O10)3(OH)10ยท4H2O
- Crystal System
- Orthorhombic
- Crystal Habit
- Radial, Prismatic
- Cleavage
- Indistinct, Indistinct, None
- Luster
- Vitreous (Glassy)
- Color
- brown, black
- Streak
- brown
- Class
- Orthorhombic - Dipyramidal
- Hardness
- 4-5
- WebMineral
- View Orientite
- Mindat
- View Orientite
Orientite from Near Copper Harbor, Keweenaw Co., Michigan, United States
Red-brown platy crystals n radial patterns of Orientite throughout black crystalline Braunite.
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Orientite from Manganese mine, Copper Harbor, Keweenaw Co., Michigan, United States
Finely disseminated rusty red Orientite in matrix. Orientite is a rare manganese silicate found in enriched Mn-deposits with Braunite.
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Orientite from Bueycito, Santiago de Cuba Prov., Cuba
Sparkly deep red micro crystals. Nice piece.
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