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Brucite & Gaudefroyite

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JYJ917769

Brucite & Gaudefroyite

Description Tabs

Description
Locality: 
NChwaning Mines, Kuruman, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 3.2 × 2.4 cm
Description

Beige platy pink brucite with black gaudefroyite and orange-red grossular from the Nchwaning mines, Kuruman, South Africa. 

SEMEDS no MA1594. Comes with a colour printed analysis. 

 

Mineral Data
What's on the rock

Brucite

Formula: 
Mg(OH)2
Strunz: 
4.FE.05
Crystal System: 
Hexagonal
Hardness: 
2.5 - 3.0
Streak: 
White
Type Locality: 
Castle Point, Hoboken, Hudson Co., New Jersey, USA

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