6.72 Ct small boulder opal
A small blue and green wavy boulder opal.
- 6.72 carats.
- 16.6 x 8.6 mm / 0.65" x 0.33".
- 4.9 mm / 0.19" thick.
- Natural solid boulder opal.
- Mined by Sue at her Mt. Margaret opal mine in Queensland, Australia.
- Commercial grade.
Vendor: Broken River Mining