Opals Australia Gold-Comments

Opals Australia Gold - By: wstaton, 2008-09-27

Though opals are found around the world, Australia is the biggest source . Precious opal is a hydrous silicon dioxide material, that flashes iridescent colors when it is seen from different angles, or when the is moved or when the light source is moved. This is also know by the term Koroit-Opal.( Boulder Opals)

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