Ore is natural rock or sediment that contains one or more valuable minerals concentrated above background levels, typically containing metals, that can be mined, treated and sold at a profit. The grade of ore refers to the concentration of the desired material it contains. The value of the metals or minerals a rock contains must be weighed against the cost of extraction to determine whether it is of sufficiently high grade to be worth mining, and is therefore considered an ore. A complex ore is one containing more than one valuable mineral.
Smelting is a process of applying heat to an ore, to extract a base metal. It is a form of extractive metallurgy. It is used to extract many metals from their ores, including silver, iron, copper, and other base metals. Smelting uses heat and a chemical- reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind. The reducing agent is commonly a fossil fuel source of carbon, such as coke—or, in earlier times, charcoal. The oxygen in the ore binds to carbon at high temperatures as the chemical potential energy of the bonds in carbon dioxide is lower than the bonds in the ore.
Wrought iron is an iron alloy with a very low carbon content in contrast to that of cast iron. It is a semi-fused mass of iron with fibrous slag inclusions, which give it a wood-like "grain" that is visible when it is etched, rusted, or bent to failure. Wrought iron is tough, malleable, ductile, corrosion resistant, and easily forge welded, but is more difficult to weld electrically.
Waukon is a city in Makee Township, Allamakee County, Iowa, United States, and the county seat of Allamakee County. The population was 3,827 at the time of the 2020 census.
Brownville is a town in Piscataquis County, Maine, United States. The population was 1,139 at the 2020 census. The town includes the villages of Brownville, Knight's Landing and Brownville Junction, near which passes the 100-Mile Wilderness of the Appalachian Trail.
Montreal is a city in Iron County, Wisconsin, United States. The population was 807 at the 2010 census. The neighborhood of Gile is part of the city; however, it still has its own post office and ZIP code: 54525. Like Gile, the former unincorporated community of Germania has also been annexed by the city.
Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite (Fe
3O
4, 72.4% Fe), hematite (Fe
2O
3, 69.9% Fe), goethite (FeO(OH), 62.9% Fe), limonite (FeO(OH)·n(H2O), 55% Fe) or siderite (FeCO3, 48.2% Fe).
The Mesabi Iron Range is a mining district in northeastern Minnesota following an elongate trend containing large deposits of iron ore. It is the largest of four major iron ranges in the region collectively known as the Iron Range of Minnesota. First described in 1866, it is the chief iron ore mining district in the United States. The district is located largely in Itasca and Saint Louis counties. It has been extensively worked since 1892, and has seen a transition from high-grade direct shipping ores through gravity concentrates to the current industry exclusively producing iron ore (taconite) pellets. Production has been dominantly controlled by vertically integrated steelmakers since 1901, and therefore is dictated largely by US ironmaking capacity and demand.
Slag is a by-product of smelting (pyrometallurgical) ores and used metals. Broadly, it can be classified as ferrous, ferroalloy or non-ferrous/base metals. Within these general categories, slags can be further categorized by their precursor and processing conditions.
Dampier is a major industrial port in the Pilbara region in the northwest of Western Australia. It is located near the city of Karratha and Port Walcott.
Siderite is a mineral composed of iron(II) carbonate (FeCO3). It takes its name from the Greek word σίδηρος sideros, "iron". It is a valuable iron mineral, since it is 48% iron and contains no sulfur or phosphorus. Zinc, magnesium and manganese commonly substitute for the iron resulting in the siderite-smithsonite, siderite-magnesite and siderite-rhodochrosite solid solution series.
Scrap consists of recyclable materials, usually metals, left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste, scrap has monetary value, especially recovered metals, and non-metallic materials are also recovered for recycling. Once collected, the materials are sorted into types — typically metal scrap will be crushed, shredded, and sorted using mechanical processes.
The Duluth, Missabe and Iron Range Railway (DM&IR), informally known as the Missabe Road, was a railroad operating in northern Minnesota and Wisconsin that used to haul iron ore and later taconite to the Great Lakes ports of Duluth and Two Harbors, Minnesota. Control of the railway was acquired on May 10, 2004, by the Canadian National Railway (CN) when it purchased the assets of Great Lakes Transportation.
Rittenhouse Gap is the name of a village in Longswamp Township in Berks County, Pennsylvania, United States, situated at 40°28′04″N75°37′47″W.
Gangamoola is a hill in the Chikkamagaluru district of the state of Karnataka, India. Also known as Varaha Parvata, it is one of the hills in the Western Ghats range and is known for being the source of three rivers, Tunga, Bhadra and Netravathi.
The Old Furnace Town Heritage Museum is an outdoor museum near Snow Hill, Maryland that uses a living history format with live demonstrations to re-create a vanished 19th-century community. The museum contains various historic buildings, including most importantly the Nassawango Iron Furnace, an early 19th-century brick blast furnace that was used to smelt bog iron ore to make pig iron. Other buildings, all of which have been moved to the site, include a church, a store, and several houses, one of which is used as an information center.
Nassawango Creek is a stream in the U.S. state of Maryland; it is the largest tributary of the Pocomoke River, located on the Delmarva Peninsula. Older variations on the same name include Nassanongo, Naseongo, Nassiongo, and Nassiungo, meaning "[ground] between [the streams]". Early English records have it as Askimenokonson Creek, after a Native settlement near its headwaters.
Treburgett is a hamlet in the parish of St Teath, Cornwall, England, United Kingdom.
Schneider et Cie, also known as Schneider-Creusot for its birthplace in the French town of Le Creusot, was a historic French iron and steel-mill company which became a major arms manufacturer. In the 1960s, it was taken over by the Belgian Empain group and merged with it in 1969 to form Empain-Schneider, which in 1980 was renamed Schneider SA and in 1999, after much restructuring, Schneider Electric.
Kanjamalai is a hill located 14 km west of Salem, in Salem District of Tamil Nadu, India. The estimated terrain elevation above sea level is about 1643
