A small triangle boulder opal with green flashes of colour in its centre.

• 5.52 carats.
• 15.4 x 14.3 mm / 0.60" x 0.56".
• 4 mm / 0.15" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.