7.61 Ct swirl rectangle boulder opal

7.61 Ct swirl rectangle boulder opal

Broken River Mining

Regular price $120.00 AUD Sale

A rectangle green and blue boulder opal with a great range of ocean tones on a semi dark body tone / background.

  • 7.61 carats.
  • 13.7 x 12.4 mm / 0.53 x 0.48".
  • 4.7 mm / 0.18" thick.
  • Natural solid boulder opal.
  • Mined by Sue at her Mt Margaret opal mine in Queensland, Australia.
  • Slightly convex face.
  • Lower commercial grade.