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Quartz & Dolomite

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WND809678

Quartz & Dolomite

Classic Locality

Description Tabs

Description
Locality: 
Trimouns, Luzenac, Ariège, Occitanie, France
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 6.1 × 3.9 cm
Description

Actually Trimouns is rather a locality for rare minerals like bastnäsite, allanite and others. So I was surprised to get such a fine quartz specimen from this famous place. The single quartz crystal is exceedingly well defined, razor sharp and transparent. The termination is superb as well.It is perched in a vug, lined with small, sparkly dolomite. As little "encore" there are fine, partly twinned and transparent clusters of larger dolomite crystals. A very, very good specimen.

Mineral Data
What's on the rock

Quartz

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

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White
Wendel Minerals

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