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Opal

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ESM589809

Opal

Description Tabs

Description
Locality: 
Lightning Ridge, Finch County, New South Wales, Australia
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
6 × 10.5 × 3 cm
Description

Opal in ironstone matrix

Mineral Data
What's on the rock

Opal

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