A fun matrix boulder opal. 6.39 carats. 20.2 x 13.5 mm. 3.0 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka opal mine in Queensland, Australia. Commercial...
A small free-form boulder opal. 5.06 carats. 14.4 x 12.1 mm. 3.0 mm thick. Natural solid boulder opal. Mined by Sue at her Mt Margaret opal mine in Queensland, Australia....
A small light teardrop boulder opal with light caramel patches. 2.53 carats. 13.5 x 8.1 mm. 2.7 mm thick. Natural solid boulder opal. Mined by Sue at her Mt Margaret...
A small green-blue boulder opal. 3.57 carats. 13.2 x 9.5 mm. 2.7 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka opal mine in Queensland, Australia. Commercial...
An small rectangle boulder opal. 5.20 carats. 18.2 x 7.2 mm. 3.3 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka opal mine in Queensland, Australia. Commercial...
An extra small green-blue boulder opal. 3.09 carats. 15.1 x 5.8 mm. 2.4 mm thick. Natural solid boulder opal. Mined by Sue at her Mt Margaret opal mine in Queensland,...
A small green-blue boulder opal. 2.66 carats. 14.8 x 7.5 mm. 2.9 mm thick. Natural solid boulder opal. Mined by Sue at her Mt Margaret opal mine in Queensland, Australia....
An unusual striped teardrop boulder opal. 4.66 carats. 29 x 11.9 mm. 4.2 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka opal mine in Queensland, Australia....
