Mining is the extraction of valuable geological materials from the Earth and other astronomical objects. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water.
A quarry is a type of open-pit mine in which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some jurisdictions to manage their safety risks and reduce their environmental impact.
Orange is a city in the Central Tablelands region of New South Wales, Australia. It is 254 km (158 mi) west of the state capital, Sydney [206 km (128 mi) on a great circle], at an altitude of 862 metres (2,828 ft). Orange had an urban population of 41,920 at the 2021 Census, making the city a significant regional centre. A significant nearby landmark is Mount Canobolas with a peak elevation of 1,395 m (4,577 ft) AHD and commanding views of the district. Orange is situated within the traditional lands of the Wiradjuri Nation.
The Argyle Diamond Mine was a diamond mine located in the East Kimberley region in the remote north of Western Australia. Argyle was at times the largest diamond producer in the world by volume, although the proportion of gem-quality diamonds was low. It was the only known significant source of pink and red diamonds, and additionally provided a large proportion of other naturally coloured diamonds, including champagne, cognac and rare blue diamonds.
Newcrest Mining Limited is an Australian-based corporation which engages in the exploration, development, mining and sale of gold and the froth flotation product, gold-copper concentrate. It is Australia's leading gold mining company and its operations have expanded beyond Australia, for example Indonesia, thus becoming a prominent international mining corporation. Newmont initially started the company as a subsidiary in 1966. The subsidiary became Newmont Holdings Pty Ltd in 1980 and in 1990 acquired 100 per cent of Australmin Holdings Limited taking the current name.
Mining in Papua New Guinea is an important part of the Papua New Guinea economy.
Drakelands Mine, also known as Hemerdon Mine or Hemerdon Ball Mine, is a tungsten and tin mine. It is located 11 km northeast of Plymouth, near Plympton, in Devon, England. It lies to the north of the villages of Sparkwell and Hemerdon, and adjacent to the large china clay pits near Lee Moor. The mine had been out of operation since 1944, except for the brief operation of a trial mine in the 1980s. Work started to re-open it in 2014, but it ceased activities in 2018. It hosts the fourth largest tin-tungsten deposit in the world.
Telfer is a minesite and company town in the Pilbara region of Western Australia, within the Great Sandy Desert. It is the state's most isolated town and is located 1,300 kilometres (808 mi) north-east of the state capital Perth. The gold, copper, and silver mine is run by Newcrest Mining, and is one of the largest gold mines in Australia.
The Telfer Mine is a gold, copper and silver mine located at Telfer on the land of the Martu people, in the Great Sandy Desert of Western Australia. It is owned by Newcrest Mining, the largest gold producer listed on the Australian Securities Exchange.
North Mara Gold Mine is a combined open pit and underground gold mine in the Tarime District of the Mara Region of Tanzania. It is one of three gold mines of Acacia Mining plc, a company listed on the London Stock Exchange, that operates in Tanzania, the other two being Bulyanhulu and the Buzwagi Gold Mine.
The world's largest producer of uranium is Kazakhstan, which in 2019 produced 43% of the world's mining output. Canada was the next largest producer with a 13% share, followed by Australia with 12%. Uranium has been mined in every continent except Antarctica.
The Olympic Dam mine is a large poly-metallic underground mine located in South Australia, 550 km (340 mi) NNW of Adelaide. It is the fourth largest copper deposit and the largest known single deposit of uranium in the world. Copper is the largest contributor to total revenue, accounting for approximately 70% of the mine's revenue, with the remaining 25% from uranium, and around 5% from silver and gold. BHP has owned and operated the mine since 2005. The mine was previously owned by Western Mining Corporation.
The Mount Polley mine is a Canadian gold and copper mine located in British Columbia near the towns of Williams Lake, and Likely. It consists of two open-pit sites with an underground mining component and is owned and operated by the Mount Polley Mining Corporation, a wholly owned subsidiary of Imperial Metals. In 2013, the mine produced an output of 38,501,165 pounds (17,463,835 kg) of copper, 45,823 ounces of gold, and 123,999 of silver. The mill commenced operations in 1997 and was closed and placed on care and maintenance in 2019. The company owns 20,113 hectares (201.13 km2) of property near Quesnel Lake and Polley Lake where it has mining leases and operations on 2,007 hectares (20.07 km2) and mineral claims on 18,106 hectares (181.06 km2). Mineral concentrate is delivered by truck to the Port of Vancouver.
The Ridgeway mine was a gold and silver open-pit mine near Ridgeway, South Carolina. In its eleven years of operation between 1988 and 1999, it produced 1,500,000 ounces of gold and 900,000 ounces of silver. The mine's two ore bodies are part of the gold-rich Carolina Slate Belt rock package that runs through the upstate Piedmont foothills. The operator of the mine, the Ridgeway Mining Company, is a subdivision of Kennecott Minerals. Kennecott is a subdivision of Rio Tinto which is one of the world's largest mining companies.
Cadia is a locality in the Cabonne Council of New South Wales, Australia. It was formerly a private township established c. 1860s by the Cadiangullong Consolidated Copper company. It is now part of the Cadia-Ridgeway Mine lease, operated by Newcrest. It had a population of zero as of the 2016 census.
Cadia Engine House is a heritage-listed engine house at Cadia, Blayney Shire, New South Wales, Australia. It was built from 1865 to 1867. The property is owned by Newcrest Mining Limited, forming part of the company's Cadia-Ridgeway Mine lease. It was added to the New South Wales State Heritage Register on 2 April 1999.
The Cadia Mine railway line is a closed and dismantled railway line in New South Wales, Australia. The 18.5 km long branch line started where it branched from the Main Western Railway line at Spring Hill and ended at Cadia. Its main role was to carry iron ore from the quarry at Cadia and for much of its life was privately operated.
