Australian Boulder Opal - 4.20 Ct small circle boulder opal - Broken River Mining

4.20 Ct small circle boulder opal

Broken River Mining

Regular price $100.00 AUD Sale

A lovely round boulder opal with purples and greens and very pretty patterning. 

  • 4.20 carats.
  • ~11.7 x 11.7 mm / 0.46 x 0.46".
  • 3.5 mm / 0.16" thick.
  • Natural solid boulder opal.
  • Mined by Sue at her Yaraka opal mine in Queensland, Australia.
  • Commercial grade.