Crystal carrying blue fires sat on layer of black base seam opal rough 5.90cts Lightning Ridge material to cut 13x13x8mm Lot B4-A705 Premium This knobby opal formation rough

This knobby opal formation rough from Lightning Ridge is a true gamble stone

Lightning Ridge remains a top source of world-class opals

Lot Title: Lightning Ridge Grey Base Seam Opal Rough – 14

With their natural formation and potential hidden fire

Ideal for lapidary projects or as a collector’s item

Crystal carrying blue fires sat on layer of black base seam opal rough 5.90cts Lightning Ridge material to cut 13x13x8mm Lot B4-A705 Premium This knobby opal formation roughLot Title: Lightning Ridge Seam Opal Rough 5. 90cts Blue Crystal on Black Base Grade A to BLot Number: B4 A705Details: 13x13x8 mm 5. 90cts Lightning Ridge Seam Opal RoughDescription: Beautiful blue crystal opal sitting on a black base seam, this 5. 90ct rough from Lightning Ridge shows bright fire and excellent structure. A strong cutters piece with potential, though note some potch lines or webbing may need to be worked around. Ideal for cutters with