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Opal

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MGR738303

Opal

Description Tabs

Description
Locality: 
Mayıslar, Saricakaya District, Eskişehir Province, Turkey
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
11.1 × 9.2 × 4.2 cm
Description

Opal nodule cut and polished showing beautiful dendrites and alternating chalcedony and opal in the interior. Very rare material, hard to obtain!

Mineral Data
What's on the rock

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Streak: 
White