A free-form matrix boulder opal with greens and purples.

• 16.47 carats.
• 35.3 x 13.7 mm / 1.38" x 0.53".
• 4.1 mm / 0.16" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.