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Prehnite & Chlorite

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RHT613876

Prehnite & Chlorite

Classic Locality

Description Tabs

Description
Locality: 
Gneiss Quarries, Arvigo, Calanca, Moesa Region, Grisons, Switzerland
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4 × 3.5 cm
Weight: 
49.00gr
Description

Nice yellowish prehnite vug in matrix with dark green chlorite.

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

Chlorite

Synonym Of: 

Chlorite Group

Group Parent: 
Chlorite
Crystal System: 
Monoclinic
Hardness: 
2 - 2.5
Colour: 
Green, Grey, Brown
Streak: 
colourless