Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Quartz Psm Anhydrite

Views:
Watches:
SNJ102405

Quartz Psm Anhydrite

Description Tabs

Description
Locality: 
Animas District, San Juan County, Colorado, United States of America
Size Range: 
Cabinet (10-18 cm)
Size: 
14 × 9 × 7 cm
Largest Crystal: 
3.00cm
Description

 This is a quartz after anhydrite encrustation from the Animas Mining District, a locality that has produced some very fine quartz epimorphs. The specimen is completely covered with these crystals. The anhydrite was dissolved long ago when acidic solutions entered the vein. 

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
sanjuanmtnrocks