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Bustamite In Calcite

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GND71036

Bustamite In Calcite

Classic Locality

Description Tabs

Description
Locality: 
Broken Hill, New South Wales, Australia
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5.5 × 5 cm
Description

While this does appear to be a large crystal of bustamite, it is in fact only cleavage planes, however it displays very well and is a good example of the species from this classic locality.

Mineral Data
What's on the rock

Bustamite

Formula: 
CaMn2+(Si2O6)
Strunz: 
9.DG.05
Hardness: 
5.5 - 6.5
Streak: 
White
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White
Gondwana Minerals