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Columbite-(Fe)

#DC28915
SOLD
Columbite-(Fe) from Topsham, Maine, United States - DC28915
Columbite-(Fe) from Topsham, Maine, United States - DC28915

Columbite-(Fe)

#DC28915
Availability
Sold
Size
1.5 x 2 x 4 cm - Miniature 
Formula
Fe2+Nb2O6 (RRUFF)
Locality
Topsham, Maine, United States

Thin black Columbite crystal showing one termination and deep striations.

Columbite-(Fe)

Formula
Fe2+Nb2O6 
Crystal System
Orthorhombic 
Crystal Habit
Massive - Granular, Striated 
Cleavage
Distinct, None, None 
Luster
Sub Metallic 
Color
black, brownish black 
Streak
blackish brown 
Class
Orthorhombic - Dipyramidal 
Fracture
Sub Conchoidal 
Hardness
6 

Data courtesy of Webmineral.

Collection
Cooke Collection
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