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Prehnite

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WND550394

Prehnite

Description Tabs

Description
Locality: 
Sadiola, Commune Sadiola, Cercle de Kayes, Kayes Region, Mali
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
6.8 × 8.3 × 5.8 cm
Largest Crystal: 
2.30cm
Description

Green, sphaeroidal aggregates of prehnite crystals, up to 2.3 cm in diameter on matrix from Sadiola Hill in Mali, associated with dark green, lustrous epidote crystals up to 2.8 cm tall. A nice, aesthetic specimen.

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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