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Prehnite

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CR10088

Prehnite

Description Tabs

Description
Locality: 
Kilpatrick Hills, Clydebank, Scotland, United Kingdom
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 6 × 4.5 cm
Description

A beautiful piece of acicular growth of yellow green prehnite crystalls.

The specimen was collected in the 19th century and has two beautiful old labels with much information.

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