Limonite is an iron ore consisting of a mixture of hydrated iron(III) oxide-hydroxides in varying composition. The generic formula is frequently written as FeO(OH)·nH2O, although this is not entirely accurate as the ratio of oxide to hydroxide can vary quite widely. Limonite is one of the three principal iron ores, the others being hematite and magnetite, and has been mined for the production of iron since at least 2500 BP.
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).
Kathu is a town in South Africa, and the iron ore capital of the Northern Cape province. Its name means "town under the trees", after the Camel Thorn forest it is situated in. The phrase "the town under the trees" was coined by an engineer working in the town in the early-1990s as part of a tourist marketing drive, together with the accompanying graphic. It was intended to be a marketing slogan. The meaning of the word "Kathu" has anecdotically been attributed to a porridge brewed by the local population from the powder found in the pods of the Camel Thorn trees.
Zouérat is the largest town in northern Mauritania and the capital of Tiris Zemmour region, with an approximate population of 44,649 (2013). It lies at the eastern end of the Mauritania Railway to Nouadhibou.
Thabazimbi is an iron mining town in the Limpopo province of South Africa. The town is at the feet of the Ysterberg and is surrounded by the Witfonteinrand and Boshofberg with the majestic Kransberg in the background. The name Thabazimbi means mountain of iron because of the large iron ore reef that was discovered in 1919 by J. H. Williams. The mine boasts one of the largest mining shafts in Africa. More than two million tonnes of ore are mined every year and hauled by train to Mittal's iron and steel works. The railway line from Rustenburg reached the area in the 1930s and full scale iron and steel production began. The town was proclaimed in 1953. Kumba Iron Ore, previously Kumba Resources, is now the principal operator of the iron ore mine.
Saldanha Bay is a natural harbour on the south-western coast of South Africa. The town that developed on the northern shore of the bay, also called Saldanha, was incorporated with five other towns into the Saldanha Bay Local Municipality in 2000. The current population of the municipality is estimated at 72,000.
Saldanha Steel was a South African steel company originally formed as a partnership between Iscor Limited and the Industrial Development Corporation (IDC). Saldanha Steel is now part of ArcelorMittal South Africa, which in turn is part of global steel company ArcelorMittal. The mill was shutdown and mothballed in 2020 resulting in the loss of 1500 jobs.
Iron ore production in Africa is dominated by South Africa, Mauritania and Algeria. Many countries possess iron ore deposits that are as yet untapped/unmined. Countries and companies currently involved in production are listed here; measurements are in tonnes per annum(year).
Cleveland-Cliffs Inc., formerly Cliffs Natural Resources, is a Cleveland, Ohio-based company that specializes in the mining, beneficiation, and pelletizing of iron ore, as well as steelmaking, including stamping and tooling. It is the largest flat-rolled steel producer in North America.
Mining is the biggest contributor to Namibia's economy in terms of revenue. It accounts for 25% of the country's income. Its contribution to the gross domestic product is also very important and makes it one of the largest economic sectors of the country. Namibia produces diamonds, uranium, copper, magnesium, zinc, silver, gold, lead, semi-precious stones and industrial minerals. The majority of revenue comes from diamond mining. In 2014, Namibia was the fourth-largest exporter of non-fuel minerals in Africa.
The Sishen–Saldanha railway line, also known as the Ore Export Line (OREX), is an 861-kilometre-long (535 mi) heavy-haul railway line in South Africa. It connects iron ore mines near Sishen in the Northern Cape with the port at Saldanha Bay in the Western Cape. It is used primarily to transport iron ore (60 million tonnes per year) and does not carry passenger traffic.
Kumba Iron Ore is an iron-ore mining company in South Africa. It is the fifth largest iron-ore producer in the world and the largest in Africa.
Venmyn Deloitte is a wholly owned subsidiary of Deloitte. The company provides consulting services to the global minerals industry, bridging the disciplines of mining and finance, and emphasises Deloitte's commitment to the global mining industry. It is headquartered in Sandton, Johannesburg, South Africa.
Saldanha, also known as Saldanha Bay, is a town of 21,636 people, located 110 kilometres (70 mi) north of Cape Town on the northern shore of Saldanha Bay, in the Western Cape province of South Africa. Its situation as a natural sheltered harbour has led to development as a port for the export of iron ore from Sishen in the Northern Cape, which is transported on the Sishen–Saldanha railway line. The port is one of the largest exporting ports of ore in the whole of Africa, and it is able to handle ships as large as 200 000 tons deadweight. Saldanha Bay is named after António de Saldanha, captain of a vessel in Albuquerque's fleet which visited South Africa in 1503.
The South African Railways Class 9E, Series 1 of 1978 is an electric locomotive.
The South African Railways Class 9E, Series 2 of 1982 is an electric locomotive.
The South African Railways Class 34-500 of 1974 is a diesel-electric locomotive.
The Transnet Freight Rail Class 43-000 of 2011 is a South African diesel-electric locomotive.
Dingleton is a town in Northern Cape, South Africa.
Fire Lake is a lake in the Côte-Nord region of Quebec, Canada. It was the location of a major open pit mining operation in the 1970s and 1980s. Operations were then suspended for twenty years, but ArcelorMittal resumed extraction in 2006.
