A lovely light green-striped boulder opal. 5.10 carats. 13.9 x 8.6 mm. 3.9 mm thick. Natural solid boulder opal. Mined by Sue at her Mt. Margaret opal mine in Queensland,...
A small free-form rainbow boulder opal. 5.02 carats. 19.5 x 10.4 mm. 3.7 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka opal mine in Queensland, Australia....
A small free-form boulder opal. 3.79 carats. 17.3 x 8.1 mm. 2.8 mm thick. Natural solid boulder opal. Mined by Sue at her Russells opal mine in Queensland, Australia. Commercial...
A pink and caramel rectangle boulder opal. 14.89 carats. 24.9 x 13.2 mm. 4 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka opal mine in Queensland,...
A small rectangle boulder opal. 3.99 carats. 13.3 x 10.1 mm. 3.2 mm thick. Natural solid boulder opal. Mined by Sue at her Russells opal mine in Queensland, Australia. Commercial...
A small rectangle boulder opal. 3.99 carats. 12.6 x 8.4mm. 3.4 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka opal mine in Queensland, Australia. Commercial grade....
A small, free-form boulder opal. 4.69 carats. 15.9 x 9.6mm. 2.6 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka opal mine in Queensland, Australia. Commercial grade....
A small bright green-blue triangle boulder opal. 4.12 carats. 13.4 x 10.4 mm. 3.4 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka opal mine in Queensland,...
