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0 item @ $0.00  

Orientite with Braunite

#BAC61624

Orientite with Braunite

#BAC61624
Availability
Sold
Size
2 x 1.5 x 1.5 cm - Thumbnail 
Formula
Ca8Mn3+10(SiO4)3(Si3O10)3(OH)10·4H2O (RRUFF)
Locality
Manganese mine, Copper Harbor, Keweenaw Co., Michigan, United States

Rusty red tiny tabular crystals. Rich and excellent specimen.

Orientite

Formula
Ca8Mn3+10(SiO4)3(Si3O10)3(OH)10·4H2
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 

Data courtesy of Webmineral.

Collection
William & Anne Cook Collection
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