Lightning Ridge Knobby opal rough 8.90cts Band of Blue fires to chase & explore 18x13x9mm Lot B4-A592 wk_auction but the internal structure is

but the internal structure is unknown

00cts Light Base & Crystal with Potch & Some ColourLot Number: B4-A514

featuring a dark base with a hint of a colour bar showing

Includes knobby and knobby formation pieces with plenty of potch and only small hints of colour throughout

Plenty of potch is present

Lightning Ridge Knobby opal rough 8.90cts Band of Blue fires to chase & explore 18x13x9mm Lot B4-A592 wk_auction but the internal structure isLot Title: Blue Fire Band Lightning Ridge Knobby Opal Rough 8. 90ctsLot Number: B4 A592Details: 18x13x9 mm Lightning Ridge Knobby FormationDescription: Lightning Ridge knobby opal rough with a distinct band of blue fire running through the body. The bar is there to chase, but how far does it go? Good size and solid build make this a worthy exploration piece for those who like a bit of mystery. A classic blue gamble waiting for the right cut. Gamble