Australian Boulder Opal - 4.36 Ct free-form milky boulder opal - Broken River Mining

4.36 Ct free-form milky boulder opal

Broken River Mining

Regular price $70.00 AUD Sale

A free-form boulder opal with a lovely milky opal center stripe.

  • 4.36 carats.
  • 16.5 x 9.8 mm / 0.64" x 0.38".
  • 4.1 mm / 0.16" thick.
  • Natural solid boulder opal.
  • Mined by Sue at her Mt Margaret opal mine in Queensland, Australia.
  • Lower commercial grade.