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Smoky Quartz & Adularia

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BMM957300

Smoky Quartz & Adularia

Description Tabs

Description
Locality: 
Galenstock, Tiefenbach, Urseren, Valais, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 4.2 × 2.9 cm
Description

This matrix specimen comes from a find from 2021. The smoky quartzes here are very dark. This gives a good contrast to the bright matrix. All crystals are double terminated. The larger of the two main crystals is 2.8 cm and is strongly reminiscent of a gwindel and may be twisted very slightly, but I would like to say it is a double terminated crystal. Other smaller crystals sit isolated and cheeky on the matrix. As an addition, there are a few bright adularia on the matrix. A crystal is broken at the base, but that's not obvious.

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