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Columbite-(Fe)

#AH53677
SOLD
Columbite-(Fe) from Araçuaí, Minas Gerais, Brazil - AH53677
Columbite-(Fe) from Araçuaí, Minas Gerais, Brazil - AH53677

Columbite-(Fe)

#AH53677
Availability
Sold
Size
2.3 x 1.3 x 2.0 cm - Thumbnail 
Formula
Fe2+Nb2O6 (RRUFF)
Locality
Araçuaí, Minas Gerais, Brazil

A single crystal with complex terminations.

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.

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