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Prehnite

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MGR824031

Prehnite

Description Tabs

Description
Locality: 
Goboboseb Mountains, Brandberg, Dâures, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 5.2 × 3.4 cm
Description

A superb specimen with a huge, complete, exposed prehnite in best quality. The crystal shows a wonderful texture, mint green color in very good saturation and excellent translucency. The contrast to quartz is very attractive,too. This size and quality of prehnite is among the best world-wide! Well balanced, very aesthetic, no significant damage to report.

Mineral Data
What's on the rock

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