Boulder Opal

Boulder Opal, Black Opal, Opal Doublet, Facts about Black Opal, Lightning Ridge, Opal Quality, Black Opal Valuation, Opal Size, Opal Shape, Opal fields, Australian Opal Mines, Coober Pedy

WHAT IS A BOULDER OPAL

This opal occurs as thin veins in sedimentary ironstone boulders, hence the name. It can sometimes be found with clear translucent colors of outstanding beauty. The color layer is naturally bonded to the dense ironstone base, and is inseparable from it. These opals come from Queensland and are unique to Australia. Boulder opal is usually less expensive than black opal of the same apparent quality.

 

PICTURE BOULDER OPAL

 

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