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Quartz & Calcite

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RBR678856

Quartz & Calcite

Description Tabs

Description
Locality: 
Piz Beverin, Mathon, Schams, Hinterrhein, Grisons, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 7 × 5.5 cm
Description

Here's something that can't be seen on the market very often. That beautiful specimen consists mainly of calcite-crystals that show an interesting stepped and a bit etched structure. The complete opposite is the perfect, sharp terminated quartz crystal right in the middle. The specimen is a real eyecatcher and something specimal for switzerland - undamaged.

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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