J'ai accidentellement coupé une pierre d'opale noire. Lightning Ridge Black and Dark Crystal Opal...
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Crazy Opal Carving. Is Crazed Opal Good Training For Beginners?
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Uncut gem screams TOP BLACK OPAL I expose and polish
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Pink Australian Opal Pendant. My First Bezel Setting. Not Great, Not Terrible. Thanks @Atthebench
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One Of The Rarest Finds In Opal Mining History ‘The Nest’ A Plate Of Three Opal Pineapples!
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Uncover What's Hidden Beneath Your Feet: Exploring Agate-filled Gravels and More During This Hike
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MOST EXPENSIVE Gemstones Ever Discovered
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How to Treat Opal with Sugar and Heat. Matrix Opal and Fairy Opal
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