6.40 Ct matrix boulder opal
A free-form matrix boulder opal with lovely greens on a light body tone / background.
- 6.40 carats.
- 22.9 x 11.8 mm / 0.90 x 0.46".
- 3.8 mm / 0.14" thick.
- Natural solid boulder opal.
- Mined by Sue at her Yaraka opal mine in Queensland, Australia.
- Commercial grade.
Vendor: Broken River Mining