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Quartz Var Gwindel

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JNM614001

Quartz Var Gwindel

Description Tabs

Description
Locality: 
Géant Glacier, Mont Blanc, Chamonix, Haute-Savoie, Auvergne-Rhône-Alpes, France
Class: 
Single Crystal
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 5 × 3 cm
Description

Rather large Gwindel with slight twist and thin chlorite coating. It is grown in transitional habitus, i.e. developed a skewed angle with the former matrix from where it detached (partially rehealed bottom face). Ex R. Vochten collection.

Mineral Data
What's on the rock

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Gwindel

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Hardness: 
0.0
JN Minerals

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