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Jacobsite

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CAM551517

Jacobsite

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4 × 2.3 cm
Description

An excellent specimen from the N'Chwaning III Mine with a very rich coverage of lustrous black sub-metallic octahedral crystals of jacobsite on a white matrix. Great piece.

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
Cartils Minerals

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