An extra small and fiery green-blue boulder opal with a slightly curved face. 

• 2.16 carats.
• ~ 10.8 x 6.9 mm / 0.42 x 0.27".
• 3.5 mm / 0.13" thick.
• Natural solid boulder opal.
• Mined by Sue at her Mt. Margaret opal mine in Queensland, Australia.
• Commercial grade.