2.55 ct. Australian Boulder Opal

2.55 ct. Australian Boulder Opal

Regular price$350.00

  • Worldwide shipping
  • Low stock - 1 item left
  • Inventory on the way
  • This large boulder opal catches your eye with vibrant pinks, and accents of blue and green. A loose stone can be great for collectors, or to make a beautiful piece of jewelry!

    1. 2.55ct Boulder opal
    2. Mined in Queensland, Australia
    3. 9.1mm x 16.7 mm x 2.6mm


    Opal is an October birthstone and the 14 year wedding anniversary stone.

      MINERAL: Hydrated Silica
      CHEMISTRY: SiO2•nH2O
      COLOR: All colors
      REFRACTIVE INDEX: 1.37-1.47
      SPECIFIC GRAVITY: 2.15 (+0.08, -0.90)
      MOHS HARDNESS: 5 to 6.5
  • If you need additional information regarding any of our gems or stones please contact us at: shop@rockshopjewelry.com

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