Lightning Ridge Dark base knobby opal rough 6.80cts Band of Blue fires to expose 16x12x6mm B4-A162 Premium With its natural formation and

With its natural formation and potential hidden fire

50cts with Lots of Exposed Blue Fires

but with inclusions to be worked around

Natural seam opal

offering exceptional potential for lapidary enthusiasts

Lightning Ridge Dark base knobby opal rough 6.80cts Band of Blue fires to expose 16x12x6mm B4-A162 Premium With its natural formation andLightning Ridge Dark Base Knobby Opal Rough 6. 80cts Lot: B4 A162Size: 16 x 12 x 6mmWeight: 6. 80 caratsOrigin: Lightning Ridge, Australia This dark base knobby opal rough from Lightning Ridge features a band of blue fire waiting to be exposed, making it an exciting piece for lapidaries and collectors. With its natural formation and strong cutting potential, this opal holds the promise of revealing something special. Natural & Untreated Blue Fire Band