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The Koroit opal field is known for the very distinctive type of boulder opal that is found in its mines. In Queensland boulder opal is found within a 300 km wide belt of sedimentary rocks in the Winton Formation. Here opal is found as a kernel in small concretions. [1] The Koroit Opal field was discovered in 1897 by Lawrence Rostron.
Jewelry applications of precious opal can be somewhat limited by opal's sensitivity to heat due primarily to its relatively high water content and predisposition to scratching. [12] Combined with modern techniques of polishing, a doublet opal can produce a similar effect to Natural black or boulder opal at a fraction of the price.
Mining was an important early source of export income in Australian colonies and helped to pay for the imports needed for the growing colonial economies. Silver and later copper were discovered in South Australia in the 1840s, leading to the export of ore and the immigration of skilled miners and smelters.
Koroit's War Memorial is located on the edge of the Botanic Gardens. In addition to The Olde Courthouse Inn, Koroit hosts two hotels in the main street, Commercial Road, the Commercial Hotel and Mickey Bourke's Koroit Hotel. The Koroit and Tower Hill Butter and Cheese Factory Company Ltd was established in Koroit in the 1890s.
Outback Opal Hunters is an Australian factual television show which follows opal miners across various sites in the Australian states of New South Wales, Queensland, South Australia and Western Australia. The series is produced by Prospero Productions and began on the Discovery Channel on 8 February 2018. The series has been a ratings success ...
Coober Pedy (/ ˈ k uː b ər ˈ p iː d i /) is a town in northern South Australia, 846 km (526 mi) north of Adelaide on the Stuart Highway.The town is sometimes referred to as the "opal capital of the world" because of the quantity of precious opals that are mined there.