A set of two small green and purple boulder opals.

• 7.11 carats (total).
• Left, 15.5 x 4.7 mm / 0.61" x 0.18".
• 2.9 mm / 0.11" thick.
• Right, 15.6 x 8 mm / 0.61" x 0.31".
• 3.8 mm / 0.14" thick.
• Natural solid boulder opals.
  
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.