What is a Boulder Opal?
Boulder Opal is a beautiful type of precious opal that is unique to Queensland, Australia. Boulder Opal is usually found in Ironstone, but sometimes found in sandstone which is referred to as Pipe Boulder Opal or Pipe Crystal Opal. Boulder opal is popularly used in pendant necklace designs, as well as in rings by jewelers around the world. Boulder Opal often has an earthy, rock look and can host an array of colors; from blues and greens to rainbows and reds. Any color combination of boulder opal is possible. Boulder Opal can also host fossilised vegetation or wood which can be very interesting to collect or use in jewelry design. Every piece of boulder opal is unique; one and only.