Niobium Columbite
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3D3DColumbite.
Sample of Columbite, one of the components of coltan ore.
Source: Jensan Scientifics
Contributor: Theodore Gray
Acquired: 2 April, 2009
Text Updated: 17 October, 2009
Price: Anonymous
Size: 0.5"
Composition: FeNb2O6
Niobium