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Prehnite

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PAV1060063

Prehnite

Description Tabs

Description
Locality: 
Dörflinger Quarry, Malsburg, Freiburg im Breisgau, Baden-Württemberg, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 2.2 × 1.5 cm
Description

Group of prehnite crystals with dark green actinolite (?).

 

Acquired: 
Boxed with Label
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