Australian Boulder Opal - 10.12 Ct free-form boulder opal - Broken River Mining

10.12 Ct free-form boulder opal

Broken River Mining

Regular price $75.00 AUD Sale

A free-form boulder opal that has some fiery colours in combination with ironstone host rock.

  • 10.12 carats.
  • 20.4 x 12 mm / 0.80 x 0.47".
  • 4.9 mm / 0.19" thick.
  • Natural solid boulder opal.
  • Mined by Sue at her Yaraka opal mine in Queensland, Australia.
  • Commercial grade.