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Prehnite

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MGR856989

Prehnite

Classic Locality

Description Tabs

Description
Locality: 
Holmestrand, Vestfold og Telemark, Norway
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 2.4 × 1.8 cm
Description

Wonderful mint green prehnite stalaktites in esthetic composition. Only the bottom was on the rock and the rest of the specimen is fully crystallized all around.

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