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La Caridad Mine
La Caridad Mine is a large open-pit copper mine in Nacozari, Sonora, Mexico. It is operated by Mexicana de Cobre, S.A., which is a part of Grupo Mexico, the largest copper producer in Mexico. The mine lies approximately east of Nacozari de Garcia. Although the mine was worked in the 1800s, it was closed about 1948, and did not reopen until 1979. In 1985 the mine was producing over 72,000 metric tons of ore per day. In addition to copper, it produced silver as a byproduct, in 1995 that amounted to over 77 tons of silver. The mine was repurchased by investors from the Mexican government in 1988. The mine employed approximately 3,000 workers in 2000. In 2006 the mine was shut down due to labor strikes. See also * Buenavista mine References External linksLa Caridad Mineat Mindat.org Mindat.org is a non-commercial online database, claiming to be the largest mineral database and mineralogy, mineralogical reference website on the Internet. It is used by professional mineral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonora
Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. The state is divided into Municipalities of Sonora, 72 municipalities; the capital (and largest) city of which being Hermosillo, located in the center of the state. Other large cities include Ciudad Obregón, Nogales, Sonora, Nogales (on the Mexico–United States border, Mexico-United States border), San Luis Río Colorado, and Navojoa. Sonora is bordered by the states of Chihuahua (state), Chihuahua to the east, Baja California to the northwest and Sinaloa to the south. To the north, it shares the Mexico–United States border, U.S.–Mexico border primarily with the state of Arizona with a small length with New Mexico, and on the west has a significant share of the coastline of the Gulf of California. Sonora's natural geography is divided into three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico ''''. . making it the world's 13th-largest country by are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable metallic form ( native metals). This led to very early human use in several regions, from circa 8000 BC. Thousands of years later, it was the first metal to be smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. 4000 BC; and the first metal to be purposely alloyed with another metal, tin, to create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grupo México
Grupo México is a Mexican conglomerate that operates through the following divisions: Mining (Minera Mexico), Transportation ( GMxT), Infrastructure and Fundacion Grupo Mexico. Its mining Division is the leading Copper producer in Mexico and the third largest copper producer in the world through ASARCO. Its transportation division operates the largest rail fleet in México, with 11,000 km of track and more than 800 engines and 26,300 coaches. It interconnects five major inland Mexican cities, five cities along the border with the United States, 13 seaports (5 on the Pacific Ocean, and 8 on the Gulf of Mexico). History The company was founded by Raúl Antonio Escobedo and Larrea Mota Velasco in 1978. After the government of Carlos Salinas declared the state mining company bankrupt, Larrea purchased key Mexican copper mines in Cananea and Nacozari (cities in the state of Sonora). He also purchased numerous other mining sites, including coal mines in the state of Coahuila. B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper Mine
Copper extraction refers to the methods used to obtain copper from its ores. The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. As in all mining operations, the ore must usually be beneficiated (concentrated). The processing techniques depend on the nature of the ore. If the ore is primarily sulfide copper minerals (such as chalcopyrite), the ore is crushed and ground to liberate the valuable minerals from the waste ('gangue') minerals. It is then concentrated using mineral flotation. The concentrate is typically sold to distant smelters, although some large mines have smelters located nearby. Such colocation of mines and smelters was more typical in the 19th and early 20th centuries, when smaller smelters could be economic. The sulfide concentrates are typically smelted in such furnaces as the Outokumpu or Inco f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver
Silver is a chemical element with the Symbol (chemistry), symbol Ag (from the Latin ', derived from the Proto-Indo-European wikt:Reconstruction:Proto-Indo-European/h₂erǵ-, ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc Refining (metallurgy), refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes bimetallism, alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buenavista Mine
The Buenavista mine, historically known as the Cananea copper mine, is a large open pit copper mine located in the north-west of Mexico in Cananea, Sonora. It lies south of the international border near Nogales, Arizona. Buenavista mine represents one of the largest copper reserves in Mexico and in the world. As of 2013, it had estimated reserves of 36 million tonnes of ore grading 0.69% copper, 3.3% zinc and 33.4 million oz of silver. Cananea represents one of the largest copper reserves in Mexico and in the world, having estimated reserves of 4.52 billion tonnes of ore with a grade of 0.42% copper. History Greene Consolidated Copper Company (1896-1907) Copper has been mined at the site continuously as far back as 1899. The mine was originally owned by the American businessman William Cornell Greene. The mine was the location of the Cananea strike in 1906. Anaconda Copper (1907-1972) The mine was run for some time by the American company Anaconda Copper. Government of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mindat
Mindat may refer to: Places in Burma/Myanmar *Mindat, Chin State, in Burma *Mindat Township, in Burma *Mindat District in Chin State, Burma Other uses *Mindat Min Kanaung Mintha ( my, ကနောင်မင်းသား; 31 January 1820 – 2 August 1866) was crown prince of Burma and son of King Tharrawaddy and younger brother of King Mindon of Burma. Towards the end of the Second Anglo-Burmese Wa ..., a Burmese prince * Mindat.org, an online mineralogy database {{dab, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper Mines In Mexico
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable metallic form (native metals). This led to very early human use in several regions, from circa 8000 BC. Thousands of years later, it was the first metal to be smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. 4000 BC; and the first metal to be purposely alloyed with another metal, tin, to create bronze, c. 350 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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