6.89 Ct small 'picture stone' boulder opal
Broken River Mining
A small rectangle picture stone boulder opal with light pastel swirls.
- 6.89 carats.
- 13.9 x 13.5 mm / 0.54" x 0.53".
- 3.5 mm / 0.13" thick.
- Natural solid boulder opal.
- Mined by Sue at her Mt. Margaret opal mine in Queensland, Australia.
- Lower commercial grade, with some natural minor inclusions (please see photos).