Yellow dominant Knobby formation rough 6.75cts Lightning Multi colours to gamble 14x12x8mm Lot B4-A018 wk_end_auction and this piece is a

and this piece is a prime example

00ct light base Coober Pedy seam opal rough features a visible blue bar ready to be explored

Dimensions: 13x11x5mm

offering incredible potential for lapidary projects

75ct opalised wood fossil rub/rough from Lightning Ridge is a rare and beautiful piece

Yellow dominant Knobby formation rough 6.75cts Lightning Multi colours to gamble 14x12x8mm Lot B4-A018 wk_end_auction and this piece is aLot Title: Yellow Dominant Knobby Formation Rough 6. 75cts Lightning Multi Colours Lot Number: B4 A018 Details: Origin: Lightning Ridge, Australia Type: Knobby Formation Rough Carat Weight: 6. 75cts Dimensions: 14x12x8mm Features: Yellow dominant opal with flashes of multi colours Natural knobby formation Ideal for gambling, cutting, and polishing Description: This 6. 75ct knobby opal formation from Lightning Ridge boasts a yellow dominant base with