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Opal

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CR19582

Opal

Description Tabs

Description
Locality: 
Dubník, Červenica, Prešov County, Prešov Region, Slovakia (Slovak Republic)
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 2.5 × 0.8 cm
Description

A rare quality opal from the historic European locality.

Dubník opals of this quality are very hard to obtain nowadays.

Mineral Data
What's on the rock

Opal

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