Trio of Lightning Ridge knobby opal formation rough 37.00cts Blues colours to explore 28x16x9mm to 19x14x9mm Lot B4-A432 Premium You get 1 x 240

You get 1 x  240 Grit

Mostly potch with only small flashes of colour here and there

or low-cost cutting

Lot NumberB4-A792

Trio of Lightning Ridge knobby opal formation rough 37.00cts Blues colours to explore 28x16x9mm to 19x14x9mm Lot B4-A432 Premium You get 1 x 240Lot Title: Lightning Ridge Knobby Opal Formation Rough 37. 00cts Trio with Blues to ExploreLot Number: B4 A432Weight: 37. 00 caratsSize: Approx. 28x16x9mm to 19x14x9mm Details: Origin: Lightning Ridge, New South WalesType: Knobby Opal Formation Rough (3 Pieces)Colour Presence: Scattered blue fire present across piecesUse: For chasing and exploring sold as gamble Description: A trio of Lightning Ridge knobby opal formation rough pieces totalling 37.