8.71 Ct matrix boulder opal
A colourful, free-form, matrix boulder opal.
- 8.71 carats.
- 18.7 x 9.8 mm / 0.73 x 0.38".
- 4.2 mm / 0.16" thick.
- Natural solid boulder opal.
- Mined by Sue at her Yaraka opal mine in Queensland, Australia.
- Commercial grade.
Vendor: Broken River Mining