Where bauxite ores are found in nigeria wikipedia encyclopedia

Brazil - Minerals

Most industrial minerals are concentrated in Minas Gerais and Pará, including iron ore, bauxite, and gold. Mato Grosso and Amapá have most of the known manganese ore deposits. The vast majority of kaolin is found in the Amazon basin. Low-quality coal reserves are located in Rio Grande do Sul and Santa Catarina. Brazil also has deposits of ...

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Aluminium - Wikipedia

The chief ore of aluminium is bauxite. Aluminium metal is highly reactive, such that native specimens are rare and limited to extreme reducing environments. Instead, it is found combined in over 270 different minerals. Aluminium is remarkable for its low density and its ability to resist corrosion through the phenomenon of passivation.

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Bauxite - Wikipedia

Bauxite is usually strip mined because it is almost always found near the surface of the terrain, with little or no overburden. As of 2010, approximately 70% to 80% of the world's dry bauxite production is processed first into alumina and then into aluminium by electrolysis.

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Bauxite: The aluminum mineral bauxite information and pictures

Bauxite is not a mineral, but rather a group of aluminum oxides. The term is generally used to describe the economically important mixture of these minerals, which form a mass of the individually classified members of Gibbsite, Boehmite, and Diaspore.Bauxite does not make aesthetic or interesting specimens as far as collectors are concerned, but it holds importance as being the primary ore of ...

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Aluminium oxide - Wikipedia

Aluminium oxide (IUPAC name) or aluminum oxide (American English) is a chemical compound of aluminium and oxygen with the chemical formula Al 2 O 3.It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide.It is commonly called alumina and may also be called aloxide, aloxite, or alundum depending on particular forms or applications.

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Bauxite - CAMEO

A soft, aluminum-containing ore. Bauxite is an impure mineral that contains hydrous aluminum oxides and aluminum hydroxides. In 1821, the first commercial source of bauxite was a mine near Les Baux, France; since then deposits have been found worldwide. Bauxite ores are usually a mottled reddish brown but can also be white, gray, yellow, or red.

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Bauxites | Article about Bauxites by The Free Dictionary

Bauxite has a widely varying composition, but it is an ore of aluminum containing four major constituents and these are hydrated oxides of aluminum, (gibbsite, boehmite and diaspore), hydrated oxides of iron such as goethite, silica and silicate minerals such as quartz and kaolin and moisture (as distinct from water of hydration contained in ...

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Aluminium oxide - Wikipedia

Aluminium oxide (IUPAC name) or aluminum oxide (American English) is a chemical compound of aluminium and oxygen with the chemical formula Al 2 O 3.It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide.It is commonly called alumina and may also be called aloxide, aloxite, or alundum depending on particular forms or applications.

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* Bauxite (Jewelry) - Definition,meaning - Online Encyclopedia

Bauxite A clay-like mineral, bauxite is the principal ore of aluminum. It is composed of aluminum oxides and aluminum hydroxides. Bauxite is used as an abrasive, a catalyst, and a refractory for the lining of furnaces which are exposed to intense heat. [] ~ A reddish-brown gemstone which is actually an ore of aluminum. It is found in tropical ...

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Bauxite Facts for Kids - Kiddle encyclopedia

Bauxite is the main ore of aluminium. It is mostly aluminium oxide. Bauxite is the most important aluminium ore. It is largely made up of the minerals Gibbsite Al(OH) 3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH), together with the iron oxides Goethite and Hematite, the clay mineral Kaolinite and small amounts of Anatase TiO 2.

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Africa - Metallic deposits

Africa - Africa - Metallic deposits: In North Africa reserves of iron ore are concentrated in the Atlas Mountains and in the western Sahara. Egypt, however, has medium-grade reserves, of which the most important are at Al-Baḥriyyah Oasis. The ore deposits in Morocco and Tunisia, which were once of considerable importance, have been severely depleted.

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Gibbsite | Article about Gibbsite by The Free Dictionary

It usually forms upon weathering of alumina-rich rocks. Together with the other hydroxides of aluminum (diaspore and boehmite) and iron, gibbsite is found in bauxite ores. Gibbsite bauxites are among the best aluminum ores.

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Brazil - Minerals | Britannica.com - Encyclopedia Britannica

Most industrial minerals are concentrated in Minas Gerais and Pará, including iron ore, bauxite, and gold. Mato Grosso and Amapá have most of the known manganese ore deposits. The vast majority of kaolin is found in the Amazon basin. Low-quality coal reserves are located in Rio Grande do Sul and Santa Catarina. Brazil also has deposits of ...

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Bauxite | Article about bauxite by The Free Dictionary

bauxite (bôk`sīt, bŏk`–), mixture of hydrated aluminum oxides usually containing oxides of iron and silicon in varying quantities.A noncrystalline substance formerly thought to be a mineral, bauxite is claylike and earthy and ranges in color from white to deep brown or red according to the nature and quantity of its components.

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Bauxite synonyms, bauxite antonyms

Synonyms for bauxite in Free Thesaurus. Antonyms for bauxite. 9 words related to bauxite: Al, aluminium, aluminum, atomic number 13, atomic number 31, gallium, Ga, mineral, gibbsite. What are synonyms for bauxite?

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Mining industry of Nigeria - Wikipedia

The mining of minerals in Nigeria accounts for only 0.3% of its GDP, due to the influence of its vast oil resources. The domestic mining industry is underdeveloped, leading to Nigeria having to import minerals that it could produce domestically, such as salt or iron ore.Rights to ownership of mineral resources is held by the Federal government of Nigeria, which grants titles to organizations ...

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Bauxite - CAMEO

A soft, aluminum-containing ore. Bauxite is an impure mineral that contains hydrous aluminum oxides and aluminum hydroxides. In 1821, the first commercial source of bauxite was a mine near Les Baux, France; since then deposits have been found worldwide. Bauxite ores are usually a mottled reddish brown but can also be white, gray, yellow, or red.

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Gypsum tin copper iron ore bauxite mining companies ...

Bauxite mining in laos hasbcoin. department of mines ministry of energy and mines , bauxite mining in laos ,and their successful development of a medium to large scale mining industry The total number of Mineral occurrences are 511 : Gold 150, Copper 45, Zinc and Lead 75 , Tin 45, Iron ore 52 , Bauxite 8, Other metals 36, Gypsum 6, Limestone Laos looks to Beijing for minerals help South China ...

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Manganese - Simple English Wikipedia, the free encyclopedia

Manganese is a silvery-gray metal and is part of the group known as the transition metals.It is similar to iron. It is hard to melt, but easy to oxidize.Manganese forms chemical compounds in several oxidation states: +2, +4, and +7 are the most common.Manganese compounds can be black, brown, pink, red, green, blue, and purple.

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Mediterranean Bauxite Province - Encyclopedia

Mediterranean Bauxite Province a major region of high-quality bauxite ores that stretches for 3,000 km along the northern shore of the Mediterranean Sea from Spain to Turkey, encompassing parts of southern France, Italy, Yugoslavia, and Greece. The province covers an area of about 2 million sq km. The Mediterranean bauxite region, part of the Alpide ...

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Mining and Refining – Process - World Aluminium

Unlike the base metal ores, bauxite does not require complex processing because most of the bauxite mined is of an acceptable grade. Ore quality can be improved by relatively simple and inexpensive processes for removing clay, known as “beneficiation”, which include washing, wet screening and mechanical or manual sorting.

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Wikipedia, the free encyclopedia

Local embassy – For Wikipedia-related communication in languages other than English. Reference desk – Serving as virtual librarians, Wikipedia volunteers tackle your questions on a wide range of subjects. Site news – Announcements, updates, articles and press releases on Wikipedia …

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List of Mineral Resources in Nigeria and Their Location ...

List of Mineral Resources in Nigeria and Their Location Nigeria is Naturally blessed as a country, with a lot of things that we can even touch in this post. If any or some of this are capitalized on, we can see a shift in movement gradually from the crude oil dependent country Nigeria is at […]

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* Bauxite (Jewelry) - Definition,meaning - Online Encyclopedia

Bauxite A clay-like mineral, bauxite is the principal ore of aluminum. It is composed of aluminum oxides and aluminum hydroxides. Bauxite is used as an abrasive, a catalyst, and a refractory for the lining of furnaces which are exposed to intense heat. [] ~ A reddish-brown gemstone which is actually an ore of aluminum. It is found in tropical ...

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Bauxite Ore Mining Equipment

From the mining equipment used to the advancements made in mining Bauxite ore, found in flat, layered deposits beneath the surface of the? chat online; Bauxite - Wikipedia. One of the world's largest bauxite mines in Weipa, Australia. Bauxite is a sedimentary rock with a …

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List of Mineral Resources in Nigeria and Their Location ...

List of Mineral Resources in Nigeria and Their Location Nigeria is Naturally blessed as a country, with a lot of things that we can even touch in this post. If any or some of this are capitalized on, we can see a shift in movement gradually from the crude oil dependent country Nigeria is at […]

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Aluminium - Simple English Wikipedia, the free encyclopedia

Pure aluminium is made from bauxite, a kind of rock that has aluminium oxide and many impurities. The bauxite is crushed and reacted with sodium hydroxide. The aluminium oxide dissolves. Then the aluminium oxide is dissolved in liquid cryolite, a rare mineral. Cryolite is …

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Mediterranean Bauxite Province - Wikipedia

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated. The Mediterranean Bauxite Province is a major region of high-quality bauxite ores that stretches for 3,000 km along the northern shore of the Mediterranean Sea from Spain to Turkey, encompassing parts of southern France, Italy, Yugoslavia, and Greece.

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Geology of Greece - Wikipedia

Bauxite: Greece has over 1000 deposits particularly in the east-central part of the country, typically between limestone formations. Bentonite: Several million tons of calcium-type bentonite is found on Kimolos and Milos and is often converted for higher swelling capacity by treating with sodium carbonate. Greece is the second largest bentonite ...

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Bauxite: The principal ore of aluminum.

Bauxite is the primary ore of aluminum. Almost all of the aluminum that has ever been produced has been extracted from bauxite. The United States has a few small bauxite deposits but at least 99% of the bauxite used in the United States is imported. The United …

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Geology of Greece - Wikipedia

Bauxite: Greece has over 1000 deposits particularly in the east-central part of the country, typically between limestone formations. Bentonite: Several million tons of calcium-type bentonite is found on Kimolos and Milos and is often converted for higher swelling capacity by treating with sodium carbonate. Greece is the second largest bentonite ...

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Raw material - Wikipedia

Foundries then smelt the ore into usable metal that may be alloyed with other materials to improve certain properties. One metallic raw material that is commonly found across the world is iron, and when combined with nickel, this material makes up over 35% of the material in the Earth's inner and outer core.

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