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Opal

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KOV761401

Opal

Description Tabs

Description
Locality: 
Dubník, Červenica, Prešov County, Prešov Region, Slovakia (Slovak Republic)
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
2.65 × 2 × 0.6 cm
Weight: 
3.27gr
Description

Opal with purple-blue shades and green flashes with a tiny yellow and red from the oldest known Opal mine, Dubník, Červenica, Prešov County, Slovakia (historic name: Veresvágás). Mined in the 1980's. Thickness is 6mm, sides are 2.6x2cm

Mineral Data
What's on the rock

Opal

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