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Rock Crystal & Calcite

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MGR651526

Rock Crystal & Calcite

Description Tabs

Description
Locality: 
Diamantina, Minas Gerais, Brazil
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 4.7 × 5.4 cm
Description

A group of sharp terminated, highly lustrous quartz crystal in combination with well shaped beige calcite. Very attractive assemble. 

Mineral Data
What's on the rock

Rock Crystal

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
Hardness: 
0.0

Calcite

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