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Wood Opal

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MNR724561

Wood Opal

Classic Locality

Description Tabs

Description
Locality: 
Banská Štiavnica, Banská Štiavnica County, Banská Bystrica Region, Slovakia (Slovak Republic)
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.8 × 3.5 cm
Description

Interesting Wood Opal from Banská Štiavnica.

Mineral Data
What's on the rock

Wood Opal

Variety Of: 

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Hardness: 
0.0