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Columbite-(Mn)

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JYJ541455

Columbite-(Mn)

Description Tabs

Description
Locality: 
Londonderry Li Deposit, Nepean, Western Australia, Australia
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 5 × 3 cm
Description

Massive columbite in pegmatite vein. It is mentioned that the Mn content is significant higher than Fe. 

Mineral Data
What's on the rock

Columbite-(Mn)

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