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Precious Opal

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PDM806220

Precious Opal

Classic Locality

Description Tabs

Description
Locality: 
Megyaszó, Zemplén Mountains, Borsod-Abaúj-Zemplén County, Hungary
Class: 
Massive/Crystalline
Size Range: 
Micromount (under 1cm)
Size: 
0.7 × 0.5 × 0.2 cm
Description

Beautiful multicoloured precious opal from the Miocene deposits of Megyaszó.

Acquired in 1986. Ex. Roger Gnat specimen.

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

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