Australian Boulder Opal - 4.12 Ct triangle boulder opal - Broken River Mining

4.12 Ct triangle boulder opal

Broken River Mining

Regular price $380.00 AUD Sale

A triangle shape boulder opal with a fiery stripes.

  • 4.12 carats.
  • 17.6 x 12 mm / 0.69 x 0.47".
  • 3.8 mm / 0.14" thick.
  • Natural solid boulder opal.
  • Mined by Sue at her Mt Margaret opal mine in Queensland, Australia.
  • Commercial grade.
  • Opal ID 2028.