Black Opal 13 x 10 x 5mm 5 cts Auction #260616 Opal Auctions
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Opal rock
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Boulder opal jewelry designed and made by Jennifer Kalled as well as work from over two hundred small studio American artists. Gifts, and custom made jewelry
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We recently had the privilege to work with this wonderful group of gem opals in the 7 to 10 carat category. The top row are opals from Mexico, including the orange red Fire Opal, and the others from Australia’s famous Lightning Ridge and Coober Pedy fields. The term Fire Opal refers specifically to those Mexican […]
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Australian Opal Auctions 8 x 5 x 3mm 0.7 cts Auction #702870 Opal Auctions
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Chemical Formula: SiO2·nH2O Locality: World wide occurrences. Name Origin: From the Old Indian upala - "precious stone." Opal is a hydrated a
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What Is Black Opal?
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