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0 item @ $0.00  

Columbite-(Fe)

#20011

Columbite-(Fe)

#20011
Availability
Sold
Size
2.5 x 2 x 2 cm - Thumbnail 
Formula
Fe2+Nb2O6 (RRUFF)
Locality
Londonderry Lithium deposit, Western Australia, Australia

A crystal with several natural faces and a termination. I am guessing this is Ferrocolumbite or Columbite-(Fe). Two of the edges show secondary, bevelled faces. An older tag with this specimen (see prov tab).

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

Data courtesy of Webmineral.

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