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Prehnite

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WND816472

Prehnite

Classic Locality

Description Tabs

Description
Locality: 
Goboboseb Mountains, Brandberg, Dâures, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.1 × 3.2 × 2.5 cm
Description

This is one of the larger examples of prehnite associated with good amethyst, that we have. Most such crystals from these finds are from smaller pockets, and are smaller in size. This is a superb specimen with excellent violet colour, and also super contrast with the apple-green Prehnite. The Amethyst is also exceeding well defined, doubly terminated mostly gemmy and highly lustrous. Really outstanding.

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
Wendel Minerals

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