7.69 Ct green-blue boulder opal
A free-form boulder opal with strong greens and blues. This opal has a flat back, but it curves up at two of the corners.
- 7.69 carats.
- 14.6 x 11.8 mm / 0.57" x 0.46".
- 3.8 mm / 0.15" thick.
- Natural solid boulder opal.
- Mined by Sue at her Yaraka opal mine in Queensland, Australia.
- Commercial grade.
Vendor: Broken River Mining