The Rammelsberg is a mountain, 635 metres (2,083 ft) high, on the northern edge of the Harz range, south of the historic town of Goslar in the North German state of Lower Saxony. The mountain is the location of an important silver, copper, and lead mine, the only mine which had been working continuously for over 1,000 years when it finally closed in 1988. Since 1992, the visitor mine of Rammelsberg has become a UNESCO World heritage site.
Falconbridge Limited was a Toronto, Ontario-based natural resources company with operations in 18 countries, involved in the exploration, mining, processing, and marketing of metal and mineral products, including nickel, copper, cobalt, and platinum. It was listed on the TSX and NYSE (FAL), and had revenue of US$6.9 billion in 2005. In August 2006, it was absorbed by Swiss-based mining company Xstrata, which had formerly been a major shareholder.
Boliden AB is a Swedish mining and smelting company focusing on production of copper, zinc, lead, gold and silver. Following a series of acquisitions during the 1980s and 1990s the company acquired mining and smelting assets of the Finnish mining and smelting company Outokumpu in 2003. Outokumpu acquired the subsidiary Boliden Contech and Boliden's copper and zinc divisions. As a consequence of the deal, Outokumpu ended up controlling 49 percent of the Boliden shares.
Neil Campbell FRSC was a famous Canadian geologist, and is a notable within the Canadian Mining Hall of Fame.
Mount Isa Mines Limited ("MIM") operates the Mount Isa copper, lead, zinc and silver mines near Mount Isa, Queensland, Australia as part of the Glencore group of companies. For a brief period in 1980, MIM was Australia's largest company. It has pioneered several significant mining industry innovations, including the Isa Process copper refining technology, the Isasmelt smelting technology, and the IsaMill fine grinding technology, and it also commercialized the Jameson Cell column flotation technology.
Heath Steele Mines, situated 60 km northwest of Newcastle, New Brunswick, Canada, at the headwaters of the Tomogonops and Little Rivers, was a large and productive copper, lead and zinc mine which operated from 1956 to 1999. The mine was an economic cornerstone of Miramichi communities throughout this period.
Copper mining in the United States has been a major industry since the rise of the northern Michigan copper district in the 1840s. In 2017 the United States produced 1.27 million metric tonnes of copper, worth $8 billion, making it the world's fourth largest copper producer, after Chile, China, and Peru. Copper was produced from 23 mines in the US. Top copper producing states in 2014 were Arizona, Utah, New Mexico, Nevada, and Montana. Minor production also came from Idaho, and Missouri. As of 2014, the US had 45 million tonnes of known remaining reserves of copper, the fifth largest known copper reserves in the world, after Chile, Australia, Peru, and Mexico.
Uranium mining in Colorado, United States, goes back to 1872, when pitchblende ore was taken from gold mines near Central City, Colorado. The Colorado uranium industry has seen booms and busts, but continues to this day. Not counting byproduct uranium from phosphate, Colorado is considered to have the third largest uranium reserves of any US state, behind Wyoming and New Mexico.
The Broken Hill Ore Deposit is located underneath Broken Hill in western New South Wales, Australia, and is the namesake for the town. It is arguably the world's richest and largest zinc-lead ore deposit.
Pyhäsalmi Mine, the deepest base metal mine in Europe is located at the Pyhäjärvi municipality in the south of Northern Ostrobothnia province, Finland. The zinc and copper mine is owned by First Quantum Minerals, a Canadian mining corporation.
Gold mining in Alaska, a state of the United States, has been a major industry and impetus for exploration and settlement since a few years after the United States acquired the territory from Russia. Russian explorers discovered placer gold in the Kenai River in 1848, but no gold was produced. Gold mining started in 1870 from placers southeast of Juneau, Alaska.
The Admiralty mining district is a mining area in the U.S. state of Alaska which consists of Admiralty Island. Most of the gold recovered from the Admiralty district is a by-product of silver and base metal mining.
El Teniente is an underground copper mine in the Chilean commune of Machalí in Cachapoal Province, Libertador General Bernardo O'Higgins Region, near the town of Sewell, 2,300 m (7,500 ft) above mean sea level in the Andes.
Tajikistan has rich deposits of gold, silver, and antimony. The largest silver deposits are in Sughd Province, where Tajikistan’s largest gold mining operation also is located. Russia’s Norilsk nickel company has explored a large new silver deposit at Bolshoy Kanimansur. More than 400 mineral deposits of some 70 different minerals have been discovered in Tajikistan, including strontium, tungsten, molybdenum, bismuth, salt, lead, zinc, fluorspar, and mercury. These minerals have been found suitable for mining. Uranium, an important mineral in the Soviet era, remains in some quantity but is no longer extracted. The Tajikistan Aluminium Company (TALCO), an aluminium smelter, is the country's only large-scale production enterprise in the mining sector. Tajikistan hosts the annual Mining World Tajikistan, an international exhibition on mining in Dushanbe.
Tara Mines is a zinc and lead mine near Navan, County Meath, Ireland. Tara is an underground mine where the orebody lies between 50 and 900 metres below the surface in carbonate-hosted lead-zinc ore deposits.
The Brunswick #6 mine is a copper-lead-zinc mine in the Bathurst Mining Camp of northern New Brunswick, Canada. It was discovered in October, 1952 and was in production from 1966 until 1983. The Brunswick #6 orebody was the first major sulfide deposit discovered in the Bathurst area. The mine operated as an open-pit operation until 1977 when a ramp was driven from the bottom of the pit to access deeper ore.
The Wedge Mine was a copper mine in the Bathurst Mining Camp of Northeast New Brunswick. It was owned and operated by Cominco on the north bank of the Nepisiguit River. The mine was discovered in 1956 and in operation from 1962 to 1968 producing 1.5 million tonnes of ore. The ore was trucked to, and milled at the Heath Steele Mine. Only the copper rich part of the deposit was mined.
The Caribou Mine is a copper-lead-zinc mine in the Bathurst Mining Camp of northern New Brunswick, Canada. It was discovered in 1955 and has seen several stages of development and production. The mine has changed ownership four times in the past 20 years.
The Murray Brook Mine is a VMS deposit in the Bathurst Mining Camp (BMC) of northern New Brunswick, Canada owned by NovaGold Resources. The deposit was discovered in 1955 and contains the largest gossan zone in the BMC. From 1989 to 1992 the gossan zone was processed for gold and silver. In 1992 copper rich ore was crushed and tested for heap leaching.
