A colourful, free-form, matrix boulder opal.

• 8.71 carats.
• 18.7 x 9.8 mm / 0.73 x 0.38".
• 4.2 mm / 0.16" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.