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Zinc Mining In The United States
Zinc mining in the United States produced of zinc in 2019, making it the world's fourth-largest zinc producer, after China, Australia, and Peru. Most US zinc came from the Red Dog mine in Alaska. The industry employed about 2,500 in mining and milling, and 250 in smelting. Current zinc-mining districts In 2019 zinc was mined in six states at 15 mines operated by five companies. Red Dog Mine, Alaska In 2019, 552,400 tonnes of zinc, 71 percent of US mined zinc production, and 4.2 percent of world zinc production, came from Teck Resources' Red Dog mine, the world's most productive zinc mine, in northwest Alaska, near Kotzebue. The mine opened in 1989. The zinc is shipped as concentrate to foreign smelters. The Red Dog is a polymetallic deposit, which also produces lead and silver concentrates. Admiralty Island, Alaska Hecla Mining's Greens Creek mine located south-southwest of Juneau, Alaska, on Admiralty Island, opened in August 1989. The mine produces silver, gold, zinc and l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Zinc Production
US or Us most often refers to: * ''Us'' (pronoun), the objective case of the English first-person plural pronoun ''we'' * US, an abbreviation for the United States US, U.S., Us, us, or u.s. may also refer to: Arts and entertainment Albums * ''Us'' (Brother Ali album) or the title song, 2009 * ''Us'' (Empress Of album), 2018 * ''Us'' (Mull Historical Society album), 2003 * ''Us'' (Peter Gabriel album), 1992 * ''Us'' (EP), by Moon Jong-up, 2021 * ''Us'', by Maceo Parker, 1974 * ''Us'', mini-album by Peakboy, 2019 Songs * "Us" (James Bay song), 2018 * "Us" (Jennifer Lopez song), 2018 * "Us" (Regina Spektor song), 2004 * "Us" (Gracie Abrams song), 2024 * "Us", by Azealia Banks from '' Fantasea'', 2012 * "Us", by Celine Dion from ''Let's Talk About Love'', 1997 * "Us", by Gucci Mane from ''Delusions of Grandeur'', 2019 * "Us", by Spoon from '' Hot Thoughts'', 2017 Other media * US Festival, two 1980s California music festivals organized by Steve Wozniak * ''Us'' (1991 f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nyrstar
Nyrstar is an international producer of minerals and metals. It was founded in August 2007 and listed on the Euronext Brussels that October. Nyrstar has mining, smelting and other operations located in Europe, the United States and Australia and employs approximately 4,000 people. Its headquarters are in Budel-Dorplein, the Netherlands. Nyrstar’s operating business is wholly owned by Trafigura, an independent commodity trading and supply chain logistics company. Nyrstar was created in 2007 by combining the zinc smelting and alloying operations of Zinifex (an Australian mining company, now merged with Oxiana to form Oz Minerals) and Umicore (a Belgian materials technology company). Nyrstar was acquired by Trafigura in 2019. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphalerite
Sphalerite is a sulfide mineral with the chemical formula . It is the most important ore of zinc. Sphalerite is found in a variety of deposit types, but it is primarily in Sedimentary exhalative deposits, sedimentary exhalative, Carbonate-hosted lead-zinc ore deposits, Mississippi-Valley type, and Volcanogenic massive sulfide ore deposit, volcanogenic massive sulfide deposits. It is found in association with galena, chalcopyrite, pyrite (and other sulfide mineral, sulfides), calcite, dolomite (mineral), dolomite, quartz, rhodochrosite, and fluorite. German geologist Ernst Friedrich Glocker discovered sphalerite in 1847, naming it based on the Greek word ''sphaleros'', meaning "deceiving", due to the difficulty of identifying the mineral. In addition to zinc, sphalerite is an ore of cadmium, gallium, germanium, and indium. Miners have been known to refer to sphalerite as ''zinc blende'', ''black-jack'', and ''ruby blende''. Marmatite is an opaque black variety with a high iron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thallium
Thallium is a chemical element; it has Symbol (chemistry), symbol Tl and atomic number 81. It is a silvery-white post-transition metal that is not found free in nature. When isolated, thallium resembles tin, but discolors when exposed to air. Chemists William Crookes and Claude-Auguste Lamy discovered thallium independently, in 1861, in residues of sulfuric acid production. Both used the newly developed method of flame spectroscopy, in which thallium produces a notable green spectral line. Thallium, from Greek language, Greek , , meaning "green shoot" or "twig", was named by Crookes. It was isolated by both Lamy and Crookes in 1862, Lamy by electrolysis and Crookes by precipitation and melting of the resultant powder. Crookes exhibited it as a powder precipitated by zinc at the 1862 International Exhibition, International Exhibition, which opened on 1 May that year. Thallium tends to form the +3 and +1 oxidation states. The +3 state resembles that of the other elements in Boron Gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indium
Indium is a chemical element; it has Symbol (chemistry), symbol In and atomic number 49. It is a silvery-white post-transition metal and one of the softest elements. Chemically, indium is similar to gallium and thallium, and its properties are largely intermediate between the two. It was discovered in 1863 by Ferdinand Reich and Hieronymous Theodor Richter by spectroscope, spectroscopic methods and named for the indigo blue line in its spectrum. Indium is used primarily in the production of flat-panel displays as indium tin oxide (ITO), a transparent and conductive coating applied to glass. It is also used in the semiconductor industry, in low-melting-point metal alloys such as Solder#Alloying element roles, solders and soft-metal high-vacuum seals. It is produced exclusively as a by-product during the processing of the ores of other metals, chiefly from sphalerite and other zinc Sulfide mineral, sulfide ores. Indium has no biological role and its compounds are toxic when inhaled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germanium
Germanium is a chemical element; it has Symbol (chemistry), symbol Ge and atomic number 32. It is lustrous, hard-brittle, grayish-white and similar in appearance to silicon. It is a metalloid or a nonmetal in the carbon group that is chemically similar to silicon. Like silicon, germanium naturally Chemical reaction, reacts and forms complexes with oxygen in nature. Because it seldom appears in high concentration, germanium was found comparatively late in the Timeline of chemical element discoveries, discovery of the elements. Germanium ranks 50th Abundance of elements in Earth's crust, in abundance of the elements in the Earth's crust. In 1869, Dmitri Mendeleev Mendeleev's predicted elements, predicted its existence and some of its Chemical property, properties from its position on his periodic table, and called the element ekasilicon. On February 6, 1886, Clemens Winkler at Freiberg University found the new element, along with silver and sulfur, in the mineral argyrodite. Winkle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gallium
Gallium is a chemical element; it has Chemical symbol, symbol Ga and atomic number 31. Discovered by the French chemist Paul-Émile Lecoq de Boisbaudran in 1875, elemental gallium is a soft, silvery metal at standard temperature and pressure. In its liquid state, it becomes silvery white. If enough force is applied, solid gallium may fracture conchoidal fracture, conchoidally. Since its discovery in 1875, gallium has widely been used to make alloys with low melting points. It is also used in semiconductors, as a dopant in semiconductor substrates. The melting point of gallium, , is used as a temperature reference point. Gallium alloys are used in thermometers as a non-toxic and environmentally friendly alternative to Mercury (element), mercury, and can withstand higher temperatures than mercury. A melting point of , well below the freezing point of water, is claimed for the alloy galinstan (62–95% gallium, 5–22% indium, and 0–16% tin by weight), but that may be t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cadmium
Cadmium is a chemical element; it has chemical symbol, symbol Cd and atomic number 48. This soft, silvery-white metal is chemically similar to the two other stable metals in group 12 element, group 12, zinc and mercury (element), mercury. Like zinc, it demonstrates oxidation state +2 in most of its compounds, and like mercury, it has a lower melting point than the transition metals in group 3 element, groups 3 through group 11 element, 11. Cadmium and its Congener (chemistry), congeners in group 12 are often not considered transition metals, in that they do not have partly filled ''d'' or ''f'' electron shells in the elemental or common oxidation states. The average concentration of cadmium in Earth's crust is between 0.1 and 0.5 parts per million (ppm). It was discovered in 1817 simultaneously by Friedrich Stromeyer, Stromeyer and Karl Samuel Leberecht Hermann, Hermann, both in Germany, as an impurity in zinc carbonate. Cadmium occurs as a minor component in most zinc ores and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clarksville, Tennessee
Clarksville is a city in Montgomery County, Tennessee, United States, and its county seat. The city had a population of 166,722 as of the 2020 United States census, 2020 census, making it the List of municipalities in Tennessee, fifth-most populous city in Tennessee. It is the principal city of the Clarksville metropolitan area, which consists of Montgomery County, Tennessee, Montgomery and Stewart County, Tennessee, Stewart counties in Tennessee and Christian County, Kentucky, Christian and Trigg County, Kentucky, Trigg counties in Kentucky. The city was founded in 1785 and incorporated in 1807, and named for General George Rogers Clark, frontier fighter and American Revolutionary War, Revolutionary War hero, and brother of William Clark (explorer), William Clark of the Lewis and Clark Expedition. Clarksville is the home of Austin Peay State University; ''The Leaf-Chronicle'', the oldest newspaper in Tennessee; and neighbor to the Fort Campbell, Kentucky, Fort Campbell, United S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Base Metal
A base metal is a common and inexpensive metal, as opposed to a precious metal such as gold or silver. In numismatics, coins often derived their value from the precious metal content; however, base metals have also been used in coins in the past and today. Specific definitions In contrast to noble metals, base metals may be distinguished by oxidizing or corroding relatively easily and reacting variably with diluted hydrochloric acid (HCl) to form hydrogen. Examples include iron, nickel, lead and zinc. Copper is also considered a base metal because it oxidizes relatively easily, although it does not react with HCl. In mining and economics, the term base metals refers to industrial non-ferrous metals excluding precious metals. These include copper, lead, nickel and zinc. The U.S. Customs and Border Protection agency is more inclusive in its definition of commercial base metals. Its list includes—in addition to copper, lead, nickel, and zinc—the following metals: iron and ste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wythe County
Wythe County () is a county located in the southwestern part of the U.S. state of Virginia. As of the 2020 United States census, the population was 28,290. Its county seat is Wytheville. History Wythe County was formed from Montgomery County in 1790. It was named after George Wythe, the first Virginian signer of the Declaration of Independence. During the Civil War the Battle of Cove Mountain was fought in the county. Prior to Wythe County's creation, what is now the Wythe County community of Austinville served as the county seat for Fincastle County, an extinct Virginia county whose borders stretched from Roanoke, Virginia, to the Mississippi River – a county roughly the size of half the State of Texas. Wythe County's Austinville community was founded by Stephen and his brother Moses Austin, father of the famous Stephen F. Austin. In the 1790s the Austins took over the mines that produced lead and zinc; the town was named for the Austin surname, and not for any one pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardin, Oklahoma
Cardin is a ghost town in Ottawa County, Oklahoma, United States. The population was 150 at the 2000 census, but declined all the way to a population of 3 at the 2010 census in April 2010. By November of 2010, the population of the town was listed as zero. A former center of zinc and lead mining in northeastern Oklahoma, the town is located within the Tar Creek Superfund site designated in 1983 because of extensive environmental contamination. The vast majority of its residents accepted federal buyout offers of their properties, and the town's population officially had declined to zero in November 2010.Sheila Stogsdill"Cardin population drops to 0 as buyout completed" ''Tulsa World'', November 17, 2010. History Early history When it was founded as a mining town in 1913, this was first known as Tar Creek, after a stream in the area. In 1918, William Oscar Cardin (Quapaw), and his wife, Isa (Wade) Cardin, had his 40-acre allotment platted and recorded with the county clerk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
