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Quartz Psm Calcite

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CR749865

Quartz Psm Calcite

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
12 × 10 × 6 cm
Description

A typically perimorphose of quartz after calcite from cavnic.

The glistening quartz crystals are associated with multifaced pyrite crystals. A very good and showy specimen from the famous Romanian locality.

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