Gorgeous Blue on this Dark base knobby opal rough split 10.00cts Lightning Ridge material to cut 18x9x6mm & 18x8x6mm Lot B4-A347 ToClear this opal has strong potential

this opal has strong potential for cutting and polishing into stunning gemstones

50ct rub/rough crystal seam opal from Coober Pedy features strong blue fire across a clean crystal body

Lot Title: Dark Base Crystal Knobby Opal Rough – 13

Dimensions: 7x6x2mm

Type: Light Base Knobby Opal Rough

Gorgeous Blue on this Dark base knobby opal rough split 10.00cts Lightning Ridge material to cut 18x9x6mm & 18x8x6mm Lot B4-A347 ToClear this opal has strong potentialLot Title: Lightning Ridge Dark Base Knobby Opal Rough Split 10. 00cts Gorgeous Blue to Cut Lot Number: B4 A347 Details: Origin: Lightning Ridge, Australia Type: Knobby Opal Rough (Split Pair) Carat Weight: 10. 00cts (total) Size: 18x9x6mm & 18x8x6mm Features: Rich dark base with gorgeous blue colour showing Split pair ideal for matched stones or individual cuts Clean shapes with cutting potential Description: A stunning 10. 00ct split pair of knobby