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  2. Olympic Australis - Wikipedia

    en.wikipedia.org/wiki/Olympic_Australis

    The Olympic Australis opal is the largest and most valuable opal yet found (as of 1961) [1] and was valued at A$2,500,000 in 1997. [2] It was found in 1956 at the 'Eight Mile' opal field near the town of Coober Pedy in South Australia. [3] The opal was found at a depth of 9.1 metres (30 ft).

  3. Yowah nut - Wikipedia

    en.wikipedia.org/wiki/Yowah_Nut

    The Yowah opal field in the Shire of Paroo. The Yowah nut is a type of precious opal, found within the Yowah opal fields situated in Yowah, Shire of Paroo, South West Queensland, Australia since the latter part of the 19th century. [1] These opals are known for their distinctive nut-like shape, opalescent patterns, and vibrant colours.

  4. Fire of Australia opal - Wikipedia

    en.wikipedia.org/wiki/Fire_of_Australia_Opal

    The Fire of Australia opal is a 998 gram uncut opal mined by Walter Bartram in 1946 at the Eight Mile field in Coober Pedy, South Australia. [1] [2] The opal is just under 5,000 carats; roughly equivalent in size to two cricket balls. [1] Although rough-cut, it is polished on two sides. [3] Due to the evaporation of an inland sea several ...

  5. Opal - Wikipedia

    en.wikipedia.org/wiki/Opal

    The primary sources of opal are Australia and Ethiopia, but because of inconsistent and widely varying accountings of their respective levels of extraction, it is difficult to accurately state what proportion of the global supply of opal comes from either country. Australian opal has been cited as accounting for 95–97% of the world's supply ...

  6. Coober Pedy - Wikipedia

    en.wikipedia.org/wiki/Coober_Pedy

    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.

  7. Open-pool Australian lightwater reactor - Wikipedia

    en.wikipedia.org/wiki/Open-pool_Australian_light...

    The Open-pool Australian lightwater reactor (OPAL) is a 20 megawatt (MW) swimming pool nuclear research reactor.Officially opened in April 2007, it replaced the High Flux Australian Reactor as Australia's only nuclear reactor, and is located at the Australian Nuclear Science and Technology Organisation (ANSTO) Research Establishment in Lucas Heights, New South Wales, a suburb of Sydney.

  8. Mining in Australia - Wikipedia

    en.wikipedia.org/wiki/Mining_in_Australia

    Zinc – Australia was third to China and Peru in zinc production in 2019, producing 1.3 million tonnes, 10% of world production. [42] Coal – Australia is the world's largest exporter of coal and fourth largest producer of coal behind China, USA and India. [43] Oil shale – Australia has the sixth largest defined oil shale resources. [44]

  9. Mintabie, South Australia - Wikipedia

    en.wikipedia.org/wiki/Mintabie,_South_Australia

    Mintabie is an opal mining community in the Anangu Pitjantjatjara Yankunytjatjara (APY lands) in South Australia.It was unique in comparison to other communities situated in the APY Lands, in that its residents were largely not of Aboriginal Australian origin, and the land had been leased to the Government of South Australia for opal mining purposes since the 1980s.

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