Semi Black Opal, 5.62 cts., 19.3x10.8 mm., Freeform Cabochon, Australia, NaturalGem: Opal (Solid Semi Black) Weight: 5. 62 cts. Size: 19. 31x10. 82x3. 92 mm. Color: Purple, Pink, Red, Orange, Green and Grey Clarity: N A Cut: Freeform Cabochon Locality: Mintabie, Australia Treatment: None (Solid) Here is a fabulous Opal gem! It is from the renowned Opal fields of Mintabie in Australia. Mintabie is in the heart of Australia and some of the best quality Opal localities you will ever see. The major production is of Semi Black Opal
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