Columbite-(Mn) photo

Specimen data (EDS plot)

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Columbite-Mn photo gallery

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COLUMBITE-(Mn) (Mn,Fe)(Nb,Ta)2O6
Locality:   Corson Mine, Nottingham, NH
Specimen Size:   1 mm crystal on Albite
Environment:    Granite pegmatite
Field collected:   Tom Mortimer