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Boulder Opal Cabochons, Page 1Next: Boulder Opal Cabs Page 2 These stones are not available for purchase separately. These opals are found in Australia. Boulder Opal is
a thin layer of opal that is within a very tough stone composed mostly
of iron. Because the layer of color is thin, the surface of the stone
is often irregular and the brown matrix will be exposed in spots. Because
of the strength of the iron matrix this stone is very durable.
Next: Boulder Opal Cabs Page 2
Opal, Fact and Fancy Links to the the other Cabochon Pages |