which are the two most important varieties of iron ore?
11012
The two varieties of iron ore of India having high iron content are magnetite and hematite. Magnetite is the finest quality iron ore with very high iron content upto 70 per cent. Hematite has an iron content of 50 to 60 per cent but is the most important industrial iron ore in terms of the quantity used.
833206
Yes, iron ore is a rock that contains the element iron. It is a resource that comes from the earth.
316326
What are the two broad categories of nonmetallic mineral resources? building materials and industrial minerals.
96174
The three raw materials used in making pig iron (which is the raw material needed to make steel) are the processed iron ore, coke (residue left after heating coal in the absence of air, generally containing up to 90% carbon) and limestone (CaCO3) or burnt lime (CaO), which are added to the blast furnace at intervals, ...
711126
DR grade pellet has a typical Fe content above 66pc, higher than Fe content of blast furnace grade pellet. DRI is a highly pure form of iron, which is often used as a feedstock along with steel scrap to produce steel in the electric arc furnace.
711112
As Swamy Swarna correctly noted, iron is a metal while coal is a non-metal composed of carbon, volatiles (aromatic hydrocarbons), ash and some minor elements (such as sulfur). However, there is a connection between iron ore and coal, and it is this: ... This iron is called “pig iron”.
908768
Currently magnetite iron ore is mined in Minnesota and Michigan in the U.S., Eastern Canada and Northern Sweden. Magnetite-bearing banded iron formation is currently mined extensively in Brazil, which exports significant quantities to Asia, and there is a nascent and large magnetite iron-ore industry in Australia.
556396
Stouts, porters, and other darker beers contain the highest concentrations of iron. Lagers, pale ales and other light-colored beers contain about three-quarters of the iron of darker beers, whereas non-alcoholic beers have about half the iron content of dark beers.
218051
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Iron oxides are chemical compounds composed of iron and oxygen. There are sixteen known iron oxides and oxyhydroxides, the best known of which is rust, a form of iron(III) oxide. ... They are used as iron ores, pigments, catalysts, and in thermite, and occur in hemoglobin.
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Other Beans and Peas Other types of beans contain good amounts of iron as well. White, lima, red kidney and navy beans closely follow soybeans, offering 4.4–6.6 mg of iron per cup cooked, or 24–37% of the RDI (8, 9, 10, 11). However, chickpeas and black-eyed peas have the highest iron content.
842313
What is Iron Ore? 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 (Fe2O3) and magnetite (Fe3O4).
95114
The characteristics of ferrous metals Ferrous metals include mild steel, carbon steel, stainless steel, cast iron, and wrought iron. These metals are primarily used for their tensile strength and durability, especially mild steel which helps hold up the tallest skyscrapers and the longest bridges in the world.
1285921
Iron is mainly present in water in two forms: either the soluble ferrous iron or the insoluble ferric iron. Water containing ferrous iron is clear and colorless because the iron is completely dissolved. ... This sediment is the oxidized or ferric form of iron that will not dissolve in water.
699536
Iron ore. Ferruginous rock containing one or more minerals from which metallic iron may be profitably extracted. The chief ores of iron consist mainly of the oxides: hematite, Fe2O3 ; goethite, alpha -FeO(OH); magnetite, Fe3O4; and the carbonate, siderite FeCO3.
310847
There are three main types of metals ferrous metals, non ferrous metals and alloys. Ferrous metals are metals that consist mostly of iron and small amounts of other elements. Ferrous metals are prone to rusting if exposed to moisture. Ferrous metals can also be picked up by a magnet.
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Iron ore is heterogeneous. A heterogeneous substance is one that contains two or more different substances that are NOT chemically combined together,...