• MineralsEncyclopedia Free Online Encyclopedia

    MINERALS CONCEPT A mineral is a naturally occurring typically inorganic substance with a specific chemical composition and structure An unknown mineral usually can be identified according to known characteristics of specific minerals in terms of certain parameters that include its appearance its hardness and the ways it breaks apart when fractured

    Get Price
  • Natural Resources in AfricaMining Africa

    Natural Resources in Africa The African continent is home to an abundance of natural resources that include diamonds gold oil natural gas uranium platinum copper cobalt iron bauxite silver and more In this section we will explore many aspects of these resources We will delve into how these resources are mined and processed

    Get Price
  • Pig ironSimple English Wikipedia the free encyclopedia

    Pig iron is iron with a high carbon content Pig iron is made by smelting iron ore into ingot form in a blast furnace s called pig iron because when being cast each ingot being cast looks like a Piglet suckling milk from a sow History Ancient Egyptians Greeks and Chinese knew about pig iron and were producing it as early as 1100BC

    Get Price
  • Iron oreSimple English Wikipedia the free encyclopedia

    Iron ores are rocks and minerals from which metallic iron can be economically extracted Iron ore pieces used to make steel Iron Fe is one of the most abundant rock forming elements It makes up about 5 of the Earth s crust It is the

    Get Price
  • Oredefinition of ore by The Free Dictionary

    ore ɔr oʊr n 1 a metal bearing mineral or rock or a native metal that can be mined at a profit 2 a mineral or natural product serving as a source of some nonmetallic substance as sulfur

    Get Price
  • Wikipedia

    Wikipedia is a free online encyclopedia created and edited by volunteers around the world and hosted by the Wikimedia Foundation English 6 326 000 articles 1 275 000

    Get Price
  • OreSimple English Wikipedia the free encyclopedia

    An ore is a mineral which has a valuable metal inside it Ores are usually extracted by being mined They can sometimes be found on the Earth s surface Most ores are chemical compounds such as oxides or sulfides There are different ways to get the metal out of the ore Iron ore for example is smelted in a blast furnace

    Get Price
  • Africa Resources National Geographic Society

    Africa the second largest continent is bounded by the Mediterranean Sea the Red Sea the Indian Ocean and the Atlantic Ocean is divided in half almost equally by the Equator Africa s physical geography environment and resources and human geography can be considered separately The origin of the name Africa is greatly disputed by scholars

    Get Price
  • Iron oreSimple English Wikipedia the free encyclopedia

    Iron ores are rocks and minerals from which metallic iron can be economically extracted Iron Fe is one of the most abundant rock forming elements It makes up

    Get Price
  • IronEncyclopedia Britannica Britannica

    Iron Fe chemical element and one of the transition elements the most used and cheapest metal Iron makes up 5 percent of Earth s crust and is second in abundance to aluminum among the metals Iron which is the chief constituent of Earth s core is the most abundant element in Earth as a whole

    Get Price
  • Coke fuel Simple English Wikipedia the free encyclopedia

    Coke is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace The carbon monoxide produced by its combustion reduces iron oxide hematite to the iron product Although coke is more expensive than coal it can be used in s as a clean fuel relatively free of smoke and impurities At the present day its use in

    Get Price
  • A Short History of AfricaStanford University

    the Encyclopedia Britannica the Encyclopedia Americana Every man s Encyclopedia perhaps because Meroe was situated in an area rich in iron ore The Kushite Kingdom of Meroe lasted for eight centuries until about A D 320 when In Africa Carthaginian trading ports extended all along the coast from Tunisia to

    Get Price
  • Iron Industry Article about Iron Industry by The Free

    The ores of the tremendous Angara Pit iron ore basin in Krasnoiarsk Krai and the Angara Him iron ore region in Irkutsk Oblast are the base for developing metallurgy in Siberia The largest and best surveyed of 13 deposits of magnetite ore in the Angara llim Basin are the Rudnogorsk and Korshunova deposits

    Get Price
  • MetalSimple English Wikipedia the free encyclopedia

    Around the year 1200 BC some people learned to make iron tools and weapons These were even harder and stronger than bronze and this was an advantage in war The time of iron tools and weapons is now called the Iron Age Metals have been very important in human history and civilization Iron and steel were important in the making of machines

    Get Price
  • IronSimple English Wikipedia the free encyclopedia

    The blast furnace is filled with iron ore coke and limestone A very hot blast of air is blown in where it causes the coke to burn The extreme heat makes the carbon react with iron ore taking off the oxygen from iron oxides and making carbon dioxide The carbon dioxide is a gas and it leaves the mix There is some sand in with the iron

    Get Price
  • List of Mines in South Africa Projects IQ

    South Africa is one of the most resource rich countries in the world and is a major global supplier of gold platinum diamonds coal iron ore manganese and many other minerals The mining sector in South Africa has an overall industry value of over R 450 billion and accounts for approximately 60 of the country s exports Join over 3 000

    Get Price
  • Iron Working and the Iron Age in AfricaAfrican Studies

    Introduction Iron technology first appears in the African continent in the 1st millennium BCE and the term Iron Age is generally used certainly south of the Sahara to describe iron using communities in Africa until the modern historical era thus covers a very long period of time and is used to describe a great variety of different societies from simple village based farmers and nomadic

    Get Price
  • MetalSimple English Wikipedia the free encyclopedia

    Around the year 1200 BC some people learned to make iron tools and weapons These were even harder and stronger than bronze and this was an advantage in war The time of iron tools and weapons is now called the Iron Age Metals have been very important in human history and civilization Iron and steel were important in the making of machines

    Get Price
  • South AfricaThe Iron AgeEncyclopedia Britannica

    South AfricaSouth AfricaThe Iron Age Because the first farmers had knowledge of ironworking their archaeological sites are characterized as Iron Age c 200 ce New groups of people arriving in South Africa at that time had strong connections to East Africa They were directly ancestral to the Bantu speaking peoples who form the majority of South Africa s population today

    Get Price
  • OrdinoSimple English Wikipedia the free encyclopedia

    History Ordino is known for the several places where the iron ore was melted between the XVII and the XIX centuries Besides being the industrial centre of Andorra Ordino is considered the cultural centre of Andorra Here Antoni Fiter i Rossell wrote the Manual Digest 1748 called the Bible of Andorra which tells the history the government and the Andorran customs

    Get Price
  • Iron AgeEncyclopedia Britannica Britannica

    Iron Age final technological and cultural stage in the Stone–Bronze–Iron Age sequence The date of the full Iron Age in which this metal for the most part replaced bronze in implements and weapons varied geographically beginning in the Middle East and southeastern Europe about 1200 bce but in China not until about 600 bce Although in the Middle East iron had limited use as a scarce and

    Get Price
  • OreSimple English Wikipedia the free encyclopedia

    Ore An ore is a mineral which has a valuable metal inside it Ores are usually extracted by being mined They can sometimes be found on the Earth s surface Most ores are chemical compounds such as oxides or sulfides There are different ways to get the metal out of the ore Iron ore for example is smelted in a blast furnace

    Get Price
  • Africa Resources National Geographic Society

    Africa s two most profitable mineral resources are gold and diamonds In 2008 Africa produced about 483 tons of gold or 22 percent of the world s total production South Africa accounts for almost half of Africa s gold production Ghana Guinea Mali and Tanzania are other major producers of gold

    Get Price
  • Iron Ore Sedimentary RockPictures Definition More

    Earth s most important iron ore deposits are found in sedimentary rocks They formed from chemical reactions that combined iron and oxygen in marine and fresh waters The two most important minerals in these deposits are iron oxides hematite Fe 2 O 3 and magnetite Fe 3 O 4 These iron ores have been mined to produce almost every iron and

    Get Price
  • List of mines in South AfricaBriefly

    3 Kumba Iron Ore Ltd Just as the name suggests this cmpany s focus is on iron mining It is a major iron ore mine in South Africa Kumba Iron Ore has its focus on the exploration extraction marketing and selling of iron ore mineral internationally

    Get Price
  • SaltSimple English Wikipedia the free encyclopedia

    In chemistry a salt is any neutral chemical compound made of cations positive ions attached to anions negative ions The main kind of salt is sodium chloride with the chemical formula NaCl It is formed when hydrochloric acid is added in sodium hydroxide The reaction is as follows HCl NaOH2 gives NaCl H20 heat

    Get Price
  • Chrome Ore Article about Chrome Ore by The Free Dictionary

    The following article is from The Great Soviet Encyclopedia 1979 It might be outdated or ideologically biased Chrome Ore a natural mineral formation containing chromium in such compounds and concentrations as to make its commercial exploitation technically feasible and economically expedient The only chromium containing minerals that provide an

    Get Price
  • Western AustraliaSimple English Wikipedia the free

    Geography Most of Western Australia WA is made of very ancient rocks from the Proterozoic era These rocks include a great deal of iron ore which is exported to Japan and elsewhere Other metals such as nickel copper lithium and gold are also found in the area The area was connected to India and Africa in the Neoproterozoic era and stayed connected until the break up of Gondwana

    Get Price
  • Mineral Resources The Canadian Encyclopedia

    Minerals and Economic Development Minerals have had an important impact on the social and economic development of Canada especially in terms of the importance of mineral exports to the Canadian economy In 2013 for example mineral exports accounted for nearly 20 per cent of the total value of all Canadian exports

    Get Price
  • EncyclopediaThe Free Dictionary

    Encyclopedia Containing over 100 000 terms TheFreeDictionary s Encyclopedia is compiled from a number of sources including The Columbia Encyclopedia The current Columbia Electronic Encyclopedia contains nearly 52 000 entries and more than 84 000 hypertext cross references marshalling 6 5 million words on a vast range of topics Comprehensively revised on a quarterly basis

    Get Price
  • EncyclopediaThe Free Dictionary

    Encyclopedia Containing over 100 000 terms TheFreeDictionary s Encyclopedia is compiled from a number of sources including The Columbia Encyclopedia The current Columbia Electronic Encyclopedia contains nearly 52 000 entries and more than 84 000 hypertext cross references marshalling 6 5 million words on a vast range of topics Comprehensively revised on a quarterly basis

    Get Price
  • Iron and Steel Industry The Canadian Encyclopedia

    Iron Ore After oxygen silicon and aluminium iron is the fourth most plentiful element in Earth s crust It occurs in certain minerals the most important being magnetite hematite goethite pyrrhotite siderite ilmenite and pyrite The term iron ore is used when rock is sufficiently rich in iron minerals to be mined economically

    Get Price
  • Ingulets Article about Ingulets by The Free Dictionary

    The following article is from The Great Soviet Encyclopedia 1979 It might be outdated or ideologically biased Ingulets a city since 1956 in the Dnepropetrovsk Oblast of the Ukrainian SSR on the Ingulets River tributary of the Dnieper Railroad station Ingulets Novyi Population 32 200 1970 It has iron ore mines a concentration combine

    Get Price

South Jinqiao Area,Pudong New Area, Shanghai, China.

GBM