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Stibnite In Precious Opal

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ZSO746112

Stibnite In Precious Opal

Description Tabs

Description
Locality: 
Dubník, Červenica, Prešov County, Prešov Region, Slovakia (Slovak Republic)
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 5.5 × 5 cm
Description

Radial aggregates of stibnite in precious opal.
In this specimen there are more than 10 stibnite fan.

This Slovakian locality is one of the largest and oldest precious opal occurence in Europe.
Major mining ceased at the beginning of the previous century. Since then, collectors have visited only. It was an underground mine. The parts of the mine can be visited today.
The opal is hosted in Tertiary volcanic rocks and associatiated with stibnite and others.

The world's largest precious opal comes from here and is preserved in the Vienna Museum. (13cm and about 600g)
The opals from here are famous for their perfect color.
One of the famous opal of the French crown jewel comes from here.

Rare when opal comes with stibnite.

Mineral Data
What's on the rock

Stibnite

Formula: 
Sb2S3
Strunz: 
2.DB.05
Hardness: 
2.0
Streak: 
Lead grey

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

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