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Quartz & Adularia

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MGR831158

Quartz & Adularia

Description Tabs

Description
Locality: 
Furka, Goms, Valais, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.2 × 4.5 × 3.1 cm
Description

Sharp terminated, water-clear and highly lustrous rock crystals formed a v-formed assemble. They are set on small matrix and a group of tiny adularia crystals is also present (at the lower base to the right hand side).

Mineral Data
What's on the rock

Quartz

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

Adularia

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