A large matrix boulder opal with a green opal vein.

• 49.32 carats.
• 38.7 x 16.4 mm / 1.52" x 0.64".
• 6.8 mm / 0.26" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.