Big Black opal rub/rough 20.00cts Lightning Ridge Bits of Blue fires flashes 20x17x10mm B4-A346 wk_end_auction A solid cutters gamble for

A solid cutters gamble for those comfortable with chasing light crystal seams and maximizing thin but colourful material

restoration

With its natural formation and strong color presence

Lot Title: Lightning Ridge Jewellery Grade Dark Opal – Bright Multi-Coloured Gemstone

Big Black opal rub/rough 20.00cts Lightning Ridge Bits of Blue fires flashes 20x17x10mm B4-A346 wk_end_auction A solid cutters gamble forLot Title: Lightning Ridge Big Black Opal Rub Rough 20. 00cts with Blue Fire Flashes Lot Number: B4 A346 Details: Origin: Lightning Ridge, Australia Type: Black Opal Rub Rough Carat Weight: 20. 00cts Size: 20x17x10mm Features: Solid black base with bits of blue fire flashes Great size and shape for exploring deeper colour potential Description: A chunky 20. 00ct black opal rub rough from Lightning Ridge, showing flashes of blue fire ready to be