8.40 Ct free-form green and ironstone boulder opal

8.40 Ct free-form green and ironstone boulder opal

Broken River Mining

Regular price $150.00 AUD Sale

A free-form boulder opal with strong greens running thought the ironstone host rock.

  • 8.40 carats.
  • 23 x 10.6 mm / 0.90 x 0.41".
  • 4.5 mm / 0.17" thick.
  • Natural solid boulder opal.
  • Mined by Sue at her Yaraka opal mine in Queensland, Australia.
  • Commercial grade.