Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Calcite On Quartz Psm Anhydrite

Views:
Watches:
SNJ87124

Calcite On Quartz Psm Anhydrite

Description Tabs

Description
Locality: 
Silverton, Animas, San Juan County, Colorado, United States of America
Size Range: 
Cabinet (10-18 cm)
Size: 
5.5 × 10 × 6.5 cm
Description

This specimen is a quartz psm. anhydrite epimorph with a bonus. Scalenohedra of calcite have coated the entire specimen. Quite unusual, I believe even for the San Juans. Acrylic base is not included.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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
Item Toolbox