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Quartz Psm Anhydrite

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SNJ142451

Quartz Psm Anhydrite

Description Tabs

Description
Locality: 
Colorado, United States of America
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 6 × 5 cm
Description

 This specimen is from a classic old Colorado locality. It consists of lustrous quartz crystals that coat the casts of anhydrite crystals that were dissolved long ago in situ. There are some damaged quartz crystals but this is still a very interesting and aesthetic specimen.

Mineral Data
What's on the rock

Quartz

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

Anhydrite

Formula: 
CaSO4
Strunz: 
7.AD.30
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 3.5
Type Locality: 
Salt mine, Hall valley, Hall, Innsbruck, Inn valley, North Tyrol, Tyrol, Austria
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