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Opal » Cat's Eye Opal
Cat's Eye Opal
Pictures of Cat's Eye Opal
What is Cat's Eye Opal?
Rarely, opal will have fire that yields an optical effect similar to a cat's eye. In these opals a thin line of fire will be visible from multiple directions and track back and forth across the stone similar to the cat's eye known in other stones. Shown here is a cat's eye opal from the Constellation Mine in Spencer, Idaho. It is four millimeters round.
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