A rectangle boulder opal with pink and green flashes in the sun and very unusual patterning.

• 23.08 carats.
• 29.4 x 14.2 mm / 1.15" x 0.56".
• 5.2 mm / 0.20" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.