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Amethyst & Calcite

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RAF639119

Amethyst & Calcite

Description Tabs

Description
Locality: 
Brandberg, Dâures, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4.5 × 3.4 cm
Largest Crystal: 
2.20cm
Weight: 
87.00gr
Description

A fine specimen of amethyst crystals on matrix that came out from Brandberg, a spot called " amethyst ". Nice crystal form and colour.

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