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0 item @ $0.00  

Montroseite with Fervantite

#38683

Montroseite with Fervantite

#38683
Availability
Sold
Size
8.5 x 6.5 x 3 cm - Sm Cabinet 
Formula
(V3+,Fe2+,V4+)O(OH) (RRUFF)
Locality
Jo Dandy mine, Montrose Co., Colorado, United States

A larger specimen than number 38683, with of course the same mineralogy produced by the typical roll front geology of the Colorado Plateau. This one also contains a little Tyuyamunite. It also has a flat-sawed side and is a little lacquered.

Montroseite

Formula
(V3+,Fe2+,V4+)O(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Microscopic Crystals, Bladed 
Cleavage
Good, Good, None 
Luster
Sub Metallic 
Color
black, grayish black 
Streak
black 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
5.5-6.5 

Data courtesy of Webmineral.

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