untouched Lighting Ridge Knobby opal rough 19.00cts Blue dominant Multifires 22x17x12mm Lot B4-A629 wk_end_auction This massive Coober Pedy seam

This massive Coober Pedy seam opal formation weighs an impressive 100 carats

Sold as not suitable for cutters — purely for the experience and fun of the find

Lot Title: Lightning Ridge Crystal Knobby Opal Rough – 6

Designed for comfort and style

Features: Bright greens and blues

untouched Lighting Ridge Knobby opal rough 19.00cts Blue dominant Multifires 22x17x12mm Lot B4-A629 wk_end_auction This massive Coober Pedy seamLot Title: Lightning Ridge Knobby Opal Rough Blue Dominant Multifires 19. 00ctsLot Number: B4 A629Details: 22x17x12 mm Lightning Ridge Knobby Opal FormationDescription: Untouched knobby opal rough from Lightning Ridge, weighing 19. 00cts. Strong blue dominant multifire present across the outer zones, with depth and body to chase. Natural skin intact, giving cutters the chance to read the fire and work it fresh. Nice size for a solid yield with careful