4.15 Ct small green boulder opal
A lovely small rectangle green boulder opal.
- 4.15 carats.
- 11.02 x 7.8 mm / 0.43" x 0.30".
- 3.5 mm / 0.13" thick.
- Natural solid boulder opal.
- Mined by Sue at her Mt Margaret opal mine in Queensland, Australia.
- Commercial grade.
Vendor: Broken River Mining
