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Opal In Obsidian

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SHS168439

Opal In Obsidian

Description Tabs

Description
Locality: 
Hochberg Quarry, Nieder-Ofleiden, Homberg, Vogelsberg, Giessen Region, Hesse, Germany
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2.2 × 1.8 cm
Description

Nice opal in obsidian matrix

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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