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Quartz & Dolomite

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BMM806491

Quartz & Dolomite

Description Tabs

Description
Locality: 
Weißeck Area, Murwinkel, Lungau, Salzburg, Austria
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 6.7 × 5.3 cm
Description

A great rarity from Weißeck Mountain: water clear needle quartz in combination with a large beige dolomite crystal on limestone. The quartz crystals are shiny and very transparent. They are grown in a cavity between limestone and dolomite. The back of the Dolomites is also overgrown with quartz. I found this piece in summer 2020. The specimen stands in the displayed positions shown without support!

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