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Gaudefroyite & Hausmannite

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TPX997561

Gaudefroyite & Hausmannite

Rare Mineral

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 4.4 × 1.8 cm
Weight: 
50.00gr
Description

Spectacular specimen of gaudefroyite and hausmannite crystals with andradite and baryte on matrix. This piece comes from an old Spanish collection and this specimen can be considered a classic from this famous South African site.

Mineral Data
What's on the rock

Gaudefroyite

Formula: 
Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3
Strunz: 
6.AB.60
Hardness: 
6.0
Type Locality: 
Tachgagalt Mine, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco

Hausmannite

Formula: 
Mn2+Mn3+2O4
Strunz: 
4.BB.10
Hardness: 
5.5
Type Locality: 
Oehrenstock (Öhrenstock), Langewiesen, Ilmenau District, Thuringian Forest, Thuringia, Germany

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