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Crasy Black Opal 12 Ct - Fantastic Red Fires Cabochon - 16.7×16.3×10.2 mm - 2.4 g in Portugal
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Opal | Geoscience Australia
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Red Australian Black Opal 2.05 ct - Opal Galaxy
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Black Fire Opal Oval Cabochon Loose Gemstone 14×10 mm 6 Cts AAA+ Fire Gemstone – ASA College: Florida
Black Opal - Absolute Opals & Gems
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1.19 ct red on black opal gem 9x6x3mm - Black Opal Direct
Black Fire Opal Ring | Patrick Adair Designs
Red Black Opal 2.72 ct - Opal Galaxy
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Black Opal, Dance of Minerals » Geology Science
