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Ferroan Magnesite Var Breunnerite

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CLB502935

Ferroan Magnesite Var Breunnerite

Classic Locality

Description Tabs

Description
Locality: 
Schlegeis Valley, Ziller valley, Tyrol, Austria
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
14.9 × 8 × 4.4 cm
Description

Very rich, big specimen with lots of sharp, partly translucent, partly dark gray 'breunnerite' crystals on mica shist.

Mineral Data
What's on the rock

Ferroan Magnesite

Variety Of: 

Magnesite

Formula: 
MgCO3
Strunz: 
5.AB.05
Hardness: 
3.5 - 4.5
Formula: 
(Mg,Fe)CO3
Hardness: 
0.0

Breunnerite

Variety Of: 

Ferroan Magnesite

Formula: 
(Mg,Fe)CO3
Hardness: 
0.0
Formula: 
(Mg,Fe)CO3
Hardness: 
0.0

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