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Chalcedony

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MGR574621

Chalcedony

Description Tabs

Description
Locality: 
Reyran Valley, Fréjus, Var, Provence-Alpes-Cote d'Azur, France
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.8 × 8.8 × 4.1 cm
Description

A very rare and fine specimen. It shows dark brown zones along the edges and it is nearly formed like a face with a laughing red mouth. Uncommon specimen, well cut and polished.

Mineral Data
What's on the rock

Chalcedony

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Kadıköy (Chalcedon), Istanbul Province, Marmara Region, Turkey