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Jacobsite

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Jacobsite

Rare Mineral

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.6 × 2 cm
Description

A rare specimen of Jacobsite crystals that came out from N'Chwaning II Mine. A very rare mineral...
Weight: 18 gr.

Mineral Data
What's on the rock

Jacobsite

Formula: 
Mn2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.5
Type Locality: 
Jakobsberg Mine, Nordmark (Nordmarksberg), Filipstad, Värmland, Sweden