A free-form boulder opal with an amazing straw pattern and beautiful movement.

• 6.41 carats.
• 14 x 10 mm / 0.55" x 0.39".
• 5 mm / 0.19" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Gem grade.
• Opal ID 276.