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Opal

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MGR842010

Opal

Classic Locality

Description Tabs

Description
Locality: 
Opal Butte, Morrow County, Oregon, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.9 × 6.4 × 4 cm
Description

Opals from Oregon are an outstanding rarity! Material from this region is hard to obtain and not easy to find on the market.

Mineral Data
What's on the rock

Opal

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