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Precious Opal

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MNR875404

Description Tabs

Description
Locality: 
Dubník, Červenica, Prešov County, Prešov Region, Slovakia (Slovak Republic)
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 6.6 × 4.6 cm
Description

Excellent precious opal sample from ancient mines at Dubnik. Colorful precious opal with intense color is rare and sought after by collectors. The sample has a nice large opal grain on top of the sample.

Mineral Data
What's on the rock

Precious Opal

Variety Of: 

Opal

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