10.31 Ct cool blue boulder opal
A small fun free-form 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.
- Lower commercial grade.
Vendor: Broken River Mining
