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Bauxite is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium and gallium. Bauxite consists mostly of the aluminium minerals gibbsite (Al(OH)3), boehmite (γ-AlO(OH)) and diaspore (α-AlO(OH)), mixed with the two iron oxides goethite (FeO(OH)) and haematite (Fe2O3), the aluminium clay mineral kaolinite (Al2Si2O5(OH)4) and small amounts of anatase (TiO2) and ilmenite (FeTiO3 or FeO.TiO2). Bauxite appears dull in luster and is reddish-brown, white, or tan in color.
Transport in Guinea is composed by a variety of systems that people in the country use to get around as well as to and from domestic and international destinations. The railway from Conakry to Kankan ceased operating in the mid-1980s. Most vehicles in Guinea are 20+ years old, and cabs are any four-door vehicle which the owner has designated as being for hire. Domestic air services are intermittent. Conakry International Airport is the largest airport in the country, with flights to other cities in Africa as well as to Europe.
Rio Tinto Group is an Anglo-Australian multinational and the world's second-largest metals and mining corporation, behind BHP, producing iron ore, copper, diamonds, gold and uranium. The company was founded in 1873, when a multinational consortium of investors purchased a mine complex on the Rio Tinto, in Huelva, Spain, from the Spanish government. Since then, the company has grown through a long series of mergers and acquisitions to place itself among the world leaders in the production of many commodities, including aluminium, iron ore, copper, uranium and diamonds. Although primarily focused on extraction of minerals, Rio Tinto also has significant operations in refining, particularly for refining bauxite and iron ore. Rio Tinto has joint head offices in London and Melbourne.
Kribi is a beach resort and sea port in Cameroon.
Mining in Western Australia, together with the petroleum industry in the state, accounted for 94% of the State's and 46% of Australia's income from total merchandise exports in 2019–20. The state of Western Australia hosted 123 predominantly higher value and export-oriented mining projects and hundreds of smaller quarries and mines. The principal projects produced more than 99 per cent of the industry's total sales value.
Camrail is a company operating passenger and freight traffic between the two largest cities in Cameroon and several smaller cities. The company was formed in 1999 and granted a 20-year concession to operate the Cameroon National Railway. The company is a subsidiary of French investment group Bolloré and the railway has been operated by Comazar, a subsidiary of Bolloré, since 1999. According to the Comazar website, the government of Cameroon owns the track while the rolling stock is owned by Camrail.
Aluminium in Africa originates from bauxite, and within Africa is primarily found in Guinea, Mozambique and Ghana. Guinea is by far the biggest producer in Africa, and is a world leader in bauxite production.
Despite being a mineral rich country, Cameroon has only recently begun to investigate mining on an industrial scale. Strong metal and industrial mineral prices since 2003 have encouraged companies to develop mines here. The terrain mainly consists of granite-rich ground with areas of ultramafic rocks that are sources of cobalt and nickel. There are also deposits of bauxite, gold, iron ore, nepheline syenite, and rutile. Alluvial gold is mainly mined by artisanal miners.
The list of railway stations in Cameroon includes:
The mineral industry of Africa is the second-largest mineral industry in the world. Africa is the second largest continent, with 30.37 million square kilometre of land, which implies large quantities of resources. With a population of 1.216 billion living there. For many African countries, mineral exploration and production constitute significant parts of their economies and remain keys to economic growth. Africa is richly endowed with mineral reserves and ranks first in quantity of world reserves of bauxite, cobalt, industrial diamond, phosphate rock, platinum-group metals (PGM), vermiculite, and zirconium.
The history of rail transport in Cameroon began at around the turn of the twentieth century.
The mining industry of Guinea was developed during colonial rule. The minerals extracted consisted of iron, gold, diamond, and bauxite. Guinea ranks first in the world in bauxite reserves and 6th in the extraction of high-grade bauxite, the aluminium ore. The mining industry and exports of mining products accounted for 17% of Guinea’s gross domestic product (GDP) in 2010. Mining accounts for over 50% of its exports. The country accounts for 94% of Africa’s mining production of bauxite. The large mineral reserve, which has mostly remained untapped, is of immense interest for international firms.
Red mud, now more frequently termed bauxite residue, is an industrial waste generated during the processing of bauxite into alumina using the Bayer process. It is composed of various oxide compounds, including the iron oxides which give its red colour. Over 95% of the alumina produced globally is through the Bayer process; for every tonne of alumina produced, approximately 1 to 1.5 tonnes of red mud are also produced. Annual production of alumina in 2020 was over 133 million tonnes resulting in the generation of over 175 million tonnes of red mud.
Mining is a significant contributor to the economy of Guyana, owing to sizable reserves of bauxite, gold, and diamonds. Much of these resources are found in Guyana's Hilly Sand and Clay belt, a region that makes up 20% of the country.
Minim is a village in the commune of Martap, in the department of Vina, in the Adamawa Region, Cameroon. The village contains Cameroon's main source of bauxite.
The geology of Cameroon is almost universally Precambrian metamorphic and igneous basement rock, formed in the Archean as part of the Congo Craton and the Central African Mobile Zone and covered in laterite, recent sediments and soils. Some parts of the country have sequences of sedimentary rocks from the Paleozoic, Mesozoic and Cenozoic as well as volcanic rock produced by the 1600 kilometer Cameroon Volcanic Line, which includes the still-active Mount Cameroon. The country is notable for gold, diamonds and some onshore and offshore oil and gas.
Bagru is a village in the Kisko CD block in the Lohardaga Sadar subdivision of the Lohardaga district in the Indian state of Jharkhand.
Jalim is a village/ Bauxite mining site in the Bishunpur CD block in the Bishnupur Sadar subdivision of the Gumla district in the Indian state of Jharkhand.
Gurdari is a village/ Bauxite mining centre in the Bishunpur CD block in the Gumla Sadar subdivision of the Gumla district in the Indian state of Jharkhand.
Serangdag is a village/ Bauxite mining centre in the Ghaghra CD block in the Gumla Sadar subdivision of the Gumla district in the Indian state of Jharkhand.
References
- ↑ "Cameroon bauxite project gets green light". New African Magazine. 2020-08-17. Retrieved 2021-12-18.
- ↑ "Canyon partners China's MCC to develop Cameroon bauxite project". www.mining-technology.com. Retrieved 2021-12-18.