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2 items @ $50.00  
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Ferroselite with Cobaltomenite

#57415
SOLD
Ferroselite from Parco mine, Grand Co., Utah, United States - 57415
Ferroselite from Parco mine, Grand Co., Utah, United States - 57415

Ferroselite with Cobaltomenite

#57415
Availability
Sold
Size
4 x 2 x 2 cm - Miniature 
Formula
FeSe2 (RRUFF)
Locality
Parco mine, Grand Co., Utah, United States

Sandstone with impregnations of selenium. The Ferroselite is brown and the Cobaltomenite is red.

Ferroselite

Formula
FeSe2 
Crystal System
Orthorhombic 
Crystal Habit
Twinning Common, Striated, Acicular 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
bronze, steel gray, silver white 
Streak
black 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
6-6.5 

Data courtesy of Webmineral.

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