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Columbite-(Mn)

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SER962788

Columbite-(Mn)

Description Tabs

Description
Locality: 
Piauí Valley, Taquaral, Itinga, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 2.3 × 1.8 cm
Description

a group of dark red, prismatic crystals of columbite-Mn on albite matrix

Mineral Data
What's on the rock

Columbite-(Mn)

Formula: 
(Mn,Fe)(Nb,Ta)2O6
Strunz: 
4.DB.35
Hardness: 
6.0