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Quartz Psm Calcite

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SNJ168411

Quartz Psm Calcite

Description Tabs

Description
Locality: 
Ouray, Ouray County, Colorado, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5 × 4 cm
Description

This is a specimen from a locality that once produced exceptional quartz encrustations. It has been "collected out".

Extremely lustrous milky quartz crystals have encrusted scalenohedral calcite crystals. Acid removed the calcite leaving

very interesting casts. This one really is exceptional, a must have for collectors.

Mineral Data
What's on the rock

Quartz

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

Calcite

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