17.96 Ct mis-matched maxtrix boulder opal pair

A matrix pair of mis-matched boulder opals with gorgeous greens opal veins running through the ironstone host rock.

• 17.96 carats (total).
• Larger opal, 21.9 x 11.6 mm / 0.86" x 0.45".
• 3.5 mm / 0.13" thick.
• Smaller opal, 18.1 x 11.7 mm / 0.71" x 0.46".
• 3.7 mm / 0.14" thick.
• Natural solid boulder opal.
• Mined by Sue at her Mt Margaret opal mine in Queensland, Australia.
• Commercial grade.