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Smoky Quartz & Adularia

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MGR689894

Smoky Quartz & Adularia

Description Tabs

Description
Locality: 
Giuv Valley, Tujetsch, Surselva Region, Grisons, Switzerland
Class: 
Single Crystal
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4.3 × 3.9 cm
Description

A highly lustrous, sharp terminazted smoky with very attractive texture and a group of intergrown adularia crystals in the lower middle of the crystal and at the lower base to the left hand side. Great contrast and impressive visual impact. The first photo was done with minor backlight, second and thrid were done under daylight.

Mineral Data
What's on the rock

Smoky Quartz

Variety Of: 

Quartz

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

Adularia

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Monoclinic
Hardness: 
6 Ortho - clase