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Cordierite Var Iolite

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TPX622122

Cordierite Var Iolite

Rare Mineral

Description Tabs

Description
Locality: 
Akland, Risør, Agder, Norway
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 5.7 × 4.4 cm
Weight: 
163.00gr
Description

Very nice sample of blue greenish cordierite, variety iolite, on quartz matrix,  the crystals are fragmented, but you can see the beautiful contrast of blue and green on the quartz, really an interesting piece from a rare site.

Mineral Data
What's on the rock

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

Iolite

Variety Of: 

Cordierite

Formula: 
(Mg,Fe)2Al3(AlSi5O18)
Strunz: 
9.CJ.10
Hardness: 
7.0 - 7.5
Hardness: 
0.0

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