Australian Boulder Opal - 10.31 Ct cool blue boulder opal - Broken River Mining

10.31 Ct cool blue boulder opal

Regular price $140.00 AUD Sale

A small fun triangle shaped boulder opal with cool blue colours.

  • 10.31 carats.
  • 23 x 11.9 mm / 0.90" x 0.46".
  • 4.3 mm / 0.16" thick.
  • Natural solid boulder opal.
  • Mined by Sue at her Mt. Margaret opal mine in Queensland, Australia.
  • Commercial grade.