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Opal

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BMM677340

Opal

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Description
Locality: 
Yowah Opal Field, Paroo Shire, Queensland, Australia
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5.3 × 4 cm
Description

Opal of Queensland with various intense blue and shades. Very good contrast to the banded brown matrix. The specimen stands in the displayed position without any support (first photo)!

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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