A curvy, free-form triangle boulder opal with strong, green and blue colours. This opal has a flat back, but it has a curvy face (see photos below).

• 8.02 carats.
• 18.1 x  13.3 mm / 0.71" x 0.52".
• 4.4 mm / 0.17" thick.
• Natural solid boulder opal.
• Mined by Sue at her Mt. Margaret opal mine in Queensland, Australia.
• Commercial grade.