7.23 Ct green-blue boulder opal
A fun, half-moon shape boulder opal with green blue swirls.
- 7.23 carats.
- 23.5 x 9.0 mm / 0.92 x 0.35".
- 4.3 mm / 0.16" thick.
- Natural solid boulder opal.
- Mined by Sue at her Mt. Margaret opal mine in Queensland, Australia.
- Commercial grade.
Vendor: Broken River Mining
