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Chlorite Psm Cordierite

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PDM724272

Chlorite Psm Cordierite

Pseudomorph

Description Tabs

Description
Locality: 
Coll de la Boquera, Mont-ras, Baix Empordà, Girona, Catalonia, Spain
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 1.2 × 1 cm
Description

A damage-free, well defined and representative specimen with cordierite crystals that have been completely replaced by phyllosilicates, mainly chlorite-group minerals, with some minor white quartz.

Found of 2010.

Mineral Data
What's on the rock

Chlorite

Synonym Of: 

Chlorite Group

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

Cordierite

Formula: 
(Mg,Fe)2Al3(AlSi5O18)
Strunz: 
9.CJ.10
Crystal System: 
Orthorhombic
Hardness: 
7.0 - 7.5
Type Locality: 
Großer Arber, Bayerisch Eisenstein, Lower Bavaria, Bavaria, Germany

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