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Opal

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JYJ715606

Opal

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Description
Locality: 
Mexico
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.6 × 3.6 × 1 cm
Description

Two opal specimens with a beautiful play of colour from Mexico. 

From an old systematic collection.

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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