Lighting Ridge Clipped Crystal knobby opal rough 4.20cts Bright Blues to expose 16x12x7mm Lot B4-A257 wk_end_auction and this dual-bar opal is

and this dual-bar opal is no exception

AustraliaType: Grey Base Seam Opal RoughUse: Cutting RoughColour: Green & blue

exposed colour bar runs along one side

some potential

Lighting Ridge Clipped Crystal knobby opal rough 4.20cts Bright Blues to expose 16x12x7mm Lot B4-A257 wk_end_auction and this dual-bar opal isLightning Ridge Clipped Crystal Knobby Opal Rough 4. 20cts Lot: B4 A257Size: 16 x 12 x 7mmTotal Weight: 4. 20 caratsOrigin: Lightning Ridge, Australia This clipped crystal knobby opal rough from Lightning Ridge features bright blues ready to be exposed, making it a great piece for cutting or collecting. With its semi transparent crystal base and vibrant flashes, this opal is packed with potential for lapidaries. Natural & Clipped Ready to Cut Rough