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Amethyst & Prehnite

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MGR1033380

Amethyst & Prehnite

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 5.4 × 3.7 cm
Description

Super fine ensamble from Namibia. Two intergrown crystals of amethyst which are coated in a layer of mint green prehnite crystals. The main amethyst shows some awesome colours inside the tip fading from purple to a deep reddish brown.

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

Prehnite

Formula: 
Ca2Al2Si3O10(OH)2
Strunz: 
9.DP.20
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Karoo dolerites, Cradock, Chris Hani District, Eastern Cape Province, South Africa