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Prehnite

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TWH588915

Prehnite

Description Tabs

Description
Locality: 
Djebel Melh, Bou Arfa, Figuig Province, Oriental Region, Morocco
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 6.5 × 4.9 cm
Description

tabular prehnite crystals stacking up forming a half sphere

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
JohnTu's Attic