Lightning Ridge Faced black knobby opal rub/rough 4.20cts Gorgeous Bright Royal blues ready to shape & Polish a Gem 15x11x6mm Lot B4-A718 wk_end_auction Features:Blue colours showing on both

Features:Blue colours showing on both fossilised specimens

This 230ct parcel of Coober Pedy seam opal rough offers an exciting opportunity for lapidary enthusiasts and opal collectors

Size: 22x10x8mm

Featuring stunning blue bars that are ready to be chased and cut

Lightning Ridge Faced black knobby opal rub/rough 4.20cts Gorgeous Bright Royal blues ready to shape & Polish a Gem 15x11x6mm Lot B4-A718 wk_end_auction Features:Blue colours showing on bothLot TitleFaced Black Knobby Rub Bright Royal Blue Lightning Ridge Opal Lot NumberB4 A718 DetailsWeight: 4. 20 ctSize: 15 x 11 x 6 mmOrigin: Lightning Ridge, AustraliaType: Faced Knobby RubUse: Cutters RubColour: Bright royal blue DescriptionPremium Lightning Ridge black opal rub with gorgeous royal blue fire already faced and ready for shaping. This knobby has been prepped to reveal its full colour bar no gamble here. High dome potential and excellent