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Columbite-(Fe)

#PD40515
SOLD
Columbite-(Fe) from Ivigtut pegmatite, Arsuk, Kitaa, Greenland - PD40515
Columbite-(Fe) from Ivigtut pegmatite, Arsuk, Kitaa, Greenland - PD40515

Columbite-(Fe)

#PD40515
Availability
Sold
Size
0.5 x 0.4 x 0.2 cm - Thumbnail 
Formula
Fe2+Nb2O6 (RRUFF)
Locality
Ivigtut pegmatite, Arsuk, Kitaa, Greenland
Tagged
pegmatite mineral

Small, black, vitreous Columbite section - a locality piece fro this important deposit, a pegmatite.

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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