A lovely purple heart shaped boulder opal. 5.35 carats. ~13 x 15.2 mm. 3 mm thick. Natural solid boulder opal. Mined by Sue at her Mt. Margaret opal mine in...
A small geometric boulder opal with gorgeous pink and orange colours. 4.44 carats. 15.3 x 10.1 mm. 3.2 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka...
A small half-moon boulder opal with an intense, one-way, rolling flash. 3.12 carats. 15.8 x 7.4 mm. 2.9 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka...
A pastel green-blue teardrop boulder opal. 4.40 carats. 15.9 x 11.5 mm. 3.3 mm thick. Natural solid boulder opal. Mined by Sue at her Mt. Margaret opal mine in Queensland,...
A pastel blue teardrop boulder opal. 8.26 carats. 18.9 x 11.7 mm. 4 mm thick. Natural solid boulder opal. Mined by Sue at her Mt. Margaret opal mine in Queensland,...
A small rectangle boulder opal. 2.98 carats. 14.1 x 6.4 mm. 2.7 mm thick. Natural solid boulder opal. Mined by Sue at her Yaraka opal mine in Queensland, Australia. Commercial...
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....
