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  2. 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]

  3. Coober Pedy - Wikipedia

    en.wikipedia.org/wiki/Coober_Pedy

    It is known for its bone collection, art and graffiti, and messages written by tourists. The dugout is featured as a set in movies, including Pitch Black and Mad Max Beyond Thunderdome. [40] [41] The Umoona Opal Mine and Museum is a popular attraction. [42] The annual Coober Pedy Opal Festival takes place in June, with the 34th edition ...

  4. 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).

  5. List of individual gemstones - Wikipedia

    en.wikipedia.org/wiki/List_of_individual_gemstones

    Andamooka Opal, presented to Queen Elizabeth II, also known as the Queen's Opal; Flame Queen Opal; Galaxy Opal; Halley's Comet Opal, the world's largest uncut black opal; Olympic Australis Opal, reported to be the largest and most valuable gem opal ever found

  6. Opal - Wikipedia

    en.wikipedia.org/wiki/Opal

    The Mintabie Opal Field in South Australia located about 250 km (160 mi) northwest of Coober Pedy has also produced large quantities of crystal opal and the rarer black opal. Over the years, it has been sold overseas incorrectly as Coober Pedy opal. The black opal is said to be some of the best examples found in Australia.

  7. Argyle diamond mine - Wikipedia

    en.wikipedia.org/wiki/Argyle_diamond_mine

    Argyle diamond mine The open pit of the Argyle diamond mine. A large mining truck is visible on the road for scale. Location Argyle Diamond Mine Location in Australia Location Lake Argyle State Western Australia Country Australia Coordinates 16°42′44″S 128°23′51″E  /  16.71222°S 128.39750°E  / -16.71222; 128.39750 Production Products Diamonds History Opened 1985 Closed ...

  8. Koroit opal field - Wikipedia

    en.wikipedia.org/wiki/Koroit_opal_field

    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.

  9. Ellendale Diamond Field - Wikipedia

    en.wikipedia.org/wiki/Ellendale_Diamond_Field

    Ellendale quickly became known as the largest single source of Fancy Yellow diamonds in the world. Whereas most diamond mines produce less than 1% Fancy Yellow stones, Ellendale's production was approximately 12%. In 2009 Tiffany & Co. launched its Yellow Diamond collection in Japan in April 2010, followed by a U.S. debut later that year.