A lovely, curvy, free-form boulder opal with blue tones.

• 11.65 carats.
• 16.6 x 14.8 mm / 0.65 x 0.58".
• 5.2 mm / 0.20" thick.
• Natural solid boulder opal.
• Mined by Sue at her Mt. Margaret opal mine in Queensland, Australia.
• Commercial grade.