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Opal

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HCH56363

Opal

Description Tabs

Description
Locality: 
Telkibánya, Zemplén Mountains, Borsod-Abaúj-Zemplén County, Hungary
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 1 cm
Description

A thumbnail specimen of yellow coloured opale.

 

Mineral Data
What's on the rock

Opal

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

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