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Opal

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RBR742364

Opal

Description Tabs

Description
Locality: 
Yowah Opal Field, Paroo Shire, Queensland, Australia
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.5 × 0.5 cm
Description

This is an excellent sample of the famous Koroite-opal. The first opal were found in the late 1890s in this area. The specimens shows a very fine, interesting structure and almost every color depending on light an angle. The item is polished all around and is truely a small jewel.

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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