Australian Boulder Opal - 21.16 Ct triangle green and ironstone boulder opal - Broken River Mining

21.16 Ct triangle green and ironstone boulder opal

Regular price $75.00 AUD Sale

A triangle shaped boulder opal with some lovely greens running throughout.

  • 21.16 carats.
  • 23.7 x 21.4 mm / 0.93" x 0.84".
  • 4.8 mm / 0.18" thick.
  • Natural solid boulder opal.
  • Mined by Sue at her Mt. Margaret opal mine in Queensland, Australia.
  • Commercial grade.