Iron

IRON

        

        Iron in its pure state is soft, malleable and bendable (that can be stretched, drawn or hammered fragile with off breaking ((Websters Dictionary, 419, 1988)) with a surdness of 4-5. It is easily magnetized at room temperatures and this property disappears when heated above 790 degrees Celsius.. Metal smoothing campaign occurs in a free state in unaccompanied a few localities, notably Green trim down (Encarta, 1996). One of the physical properties of iron as an ore is its color which can be black, brown or even reddish. Hematite is the most important iron ore, unremarkably occurs as kidney ore - so -called because of its shape (Symes, 1988, 56). Other ores included goethite, magnetite, siderite, and slow iron (Encarta, 1996). Even though iron is tough and hard it is still easy to work. Iron is a active metal and will combine with halogens, carbon, etc. It has an atomic weight 55.847, its atomic number is 26, its specific gravity is 7.86, its melting point is 1535 degrees Celsius, and its boiling point is 3000 degrees Celsius. It burns in oxygen forming ferrous oxide. When receptive to moist air, iron becomes corroded, forming a reddish - brown, flaky, hydrated ferrous oxide, commonly known as rust. (Encarta, 1996)

        Iron is formed in shallow seas.



It comes out of the water and collects on the sea floor. This creates an submersed deposit. This process occurs over billions of years. Through plate movement the self-coloured sea floor is eventually moved up out of the water. Once out of the water, the iron has formed a land deposit. The biggest iron deposit in the United States is in the broad Lakes. Northern Minnesota is often called the Iron Range. There ar two ways iron deposits are located. In the archetypical method special machines that detects the irons...

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