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Opal

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MGR872692

Opal

Gem Crystal

Description Tabs

Description
Locality: 
Mintabie, North West Province, South Australia, Australia
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.2 × 0.6 cm
Description

Wonderful, most valueable blue opal. This is not a boulder-opal - this is pure, massiv opal with 5,05 carat weight. Perfect quality with amazing flashes.

Mineral Data
What's on the rock

Opal

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