A large oval boulder opal with multiple fun colours appearing through the ironstone host rock.
- 18.40 carats.
- 28 x 16.4 mm / 1.10 x 0.64".
- 4 mm / 0.15" thick.
- Natural solid boulder opal.
- Mined by Sue at her Yaraka opal mine in Queensland, Australia.
- Commercial grade.
- Opal ID 1802.
