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Columbite-(Mn)

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Watches:
SHS95821

Columbite-(Mn)

ex. Collection Ingemar Johansson (Kopparberg/Sweden)

Description Tabs

Description
Locality: 
Stakholmen Quarry, Hassela, Nordanstig, Gävleborg County, Sweden
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.3 × 7.6 × 6.7 cm
Description

Columbite mn in quartz

Mineral Data
What's on the rock

Columbite-(Mn)

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