A two sided boulder opal specimen with blues and very interesting potch patterning

• 163.38 carats / 32.67 grams
• 53 x 21.8 mm / 2.08" x 0.85".
• 19.3 mm / 0.75" thick.
• Natural solid boulder opal specimen.
• Mined by Sue at her Mt Margaret opal mine in Queensland, Australia.
• Stands on its own in all directions.