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Rock Crystal

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MGR720514

Rock Crystal

Description Tabs

Description
Locality: 
Lugnez Valley, Lumnezia, Surselva Region, Grisons, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.4 × 4.6 × 4.2 cm
Description

This is very rare material, it comes from only a few clefts in a very small area. The crystals are sharp terminated, highly lustrous and water-clear - they all show very dark grey, sharp internal zoning, which is the typical indicator for this famous material. The faces are all lustrous, the contrast on glass-like rock crystals with the dark zoning is very special and unique. The crystals formed a well formed, aesthetic group. No significant damages to report.

Mineral Data
What's on the rock

Rock Crystal

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
Hardness: 
0.0
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