dark base Crystal Seam opal rough 11.50cts Coober Pedy with Flashes of blues & greens 22x10x9mm Lot B4-A367 Premium With its natural structure and

With its natural structure and vibrant play-of-color

The opals are embedded in red host rock and show some very faint colour

QLD – Boulder OpalDescription:Bright reds and multi-fire flashes light up the face of this Winton boulder opal rough

With its natural formation and potential for strong play-of-color

dark base Crystal Seam opal rough 11.50cts Coober Pedy with Flashes of blues & greens 22x10x9mm Lot B4-A367 Premium With its natural structure andLot Title: Dark Base Crystal Seam Opal Rough Flashes of Blues & GreensLot Number: B4 A367Weight: 11. 50 caratsDimensions: 22 x 10 x 9 mm Details: Origin: Coober Pedy, South Australia Type: Crystal Seam Opal (Rough) Body Tone: Dark base crystal Play of Colour: Flashing blues and greens Transparency: Semi translucent to translucent Cutting Potential: Moderate visible colour with more to chase Description: This 11. 50ct dark base crystal seam opal from