Australian Boulder Opal - 6.91 Ct small free-form boulder opal - Broken River Mining

6.91 Ct small free-form boulder opal

Regular price $70.00 AUD Sale

A small free-form boulder opal with multiple colours.

  • 6.91 carats.
  • 17.9 x 10.6 mm / 0.70" x 0.41".
  • 4.6 mm / 0.18" thick.
  • Natural solid boulder opal.
  • Mined by Sue at her Mt. Margaret opal mine in Queensland, Australia.
  • Commercial grade.