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Fervanite with Montroseite

#38664

Fervanite with Montroseite

#38664
Availability
Sold
Size
4 x 3 x 2.5 cm - Miniature 
Formula
Fe3+4V5+4O16·5H2O (RRUFF)
Locality
Jo Dandy mine, Montrose Co., Colorado, United States

Greenish brown Fervanite impregnating coarse grained sandstone with black Montroseite.

Fervanite

Formula
Fe3+4V5+4O16·5H2
Crystal System
Monoclinic 
Crystal Habit
Fibrous 
Cleavage
None, None, None 
Luster
Adamantine 
Color
yellow, brown, pale green 
Streak
yellowish brown 
Class
Monoclinic 
Hardness

Data courtesy of Webmineral.

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