Knobby opal formation rough of Lighting Ridge 23.00cts Bright Blues in bar visible 360 but clay/sand host to work around 25x14x13mm Lot B4-A580 wk_end_auction A Grade A to B

A Grade A to B Cutter's Gamble — low to moderate risk

16 mm down to chip size

making it a fascinating piece for collectors or cutters

Description:This 70

Opalised wood fossil

Knobby opal formation rough of Lighting Ridge 23.00cts Bright Blues in bar visible 360 but clay/sand host to work around 25x14x13mm Lot B4-A580 wk_end_auction A Grade A to BLot Title: Blue Bar 360 Lightning Ridge Knobby Opal Rough 23. 00ctsLot Number: B4 A580Details: 25x14x13 mm Lightning Ridge Knobby FormationDescription: Chunky knobby opal rough from Lightning Ridge showing bright blue colour in the bar, visible 360 around the piece. The bar wraps nicely, offering strong cutting potential but theres some clay sand host that needs to be worked around. A great gamble for cutters with experience navigating host material.