Australian Boulder Opal - 18.70 Ct colourful boulder opal - Broken River Mining

18.70 Ct colourful boulder opal

Broken River Mining

Regular price $320.00 AUD Sale

An oval shaped boulder opal with fiery pinfire colours running down the middle of the stone, like a river.

  • 18.70 carats.
  • 25.7 x 14.1 mm / 1.01" x 0.55".
  • 5 mm / 0.19" thick.
  • Natural solid boulder opal.
  • Mined by Sue at her Yaraka opal mine in Queensland, Australia.
  • Commercial grade.