Australian Boulder Opal - 18.86 Ct free-form ocean swirl boulder opal - Broken River Mining

18.86 Ct free-form ocean swirl boulder opal

Broken River Mining

Regular price $280.00 AUD Sale

A free-form boulder opal with swirls of strong ocean greens and blues along with picturesque ironstone inclusions.  

  • 18.86 carats.
  • 19.3 x 15 mm / 0.75 x 0.59".
  • 6.1 mm / 0.24" thick.
  • Natural solid boulder opal.
  • Mined by Sue at her Yaraka opal mine in Queensland, Australia.
  • Commercial grade.