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Gem Black Opal

How is Gem Black Opal found? Gem black Opal is found in the formation of a nobby (rounded nodule) or in a seam. Lightning Ridge in Australia is the only sedimentary deposit in the world for Gem Black Opal. What is the appearance of Gem Black Opal? Black Opal has a natural dark appearance. The opal has a black potch backing with a colour bar on top of the potch. Gem Black Opal usually comes in the colours of green, orange & red. The best color is red blue. All of these colours are interchangeable. No two pieces of opal will ever be identical making each piece rare & individual.…

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