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Amethyst & Calcite

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Amethyst & Calcite

Description Tabs

Description
Locality: 
Brandberg, Dâures, Erongo Region, Namibia
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.8 × 4.2 × 7.2 cm
Largest Crystal: 
5.50cm
Description

A large amethyst quartz crystal on matrix with some calcite. Has a contact area where it came into contact with some other crystals

#A1644cro

Mineral Data
What's on the rock

Amethyst

Variety Of: 

Quartz

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

Calcite

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