6.71 Ct triangle boulder opal
A fun triangle picture stone boulder opal.
- 6.71 carats.
- 23.4 x 10.7 mm / 0.92 x 0.42".
- 5.2 mm / 0.20" thick.
- Natural solid boulder opal.
- Mined by Sue at her Mt. Margaret opal mine in Queensland, Australia.
- Commercial grade.
Vendor: Broken River Mining