Boulder Opal

Boulder Opal Gemstone - Buy boulder opal stones at the best price. Large range of natural boulder opal, natural boulder opal, Australian boulder opal, certified boulder opal.

Boulder opal is found sparsely distributed over a large area of Australian ironstone or boulder country where opal (silica mix) fills veins, cracks, cavities and fissures in ironstone boulders. Opal boulder stone is always ground to include the brown host stone. One of the largest boulder opal areas is located northwest of Lightning Ridge in western Queensland. The Queensland Boulder Opal areas comprise a large area centered on the town of Quilpie and extend as far north as Winton and south to Cunamulla. Known for its vivid flaming clear rich colors, this variety is in very high demand and very popular. Interest in Queensland Boulder Opal has increased significantly over the past 20 years.