Geography
In regard to ferrous metals, state the economic uses of any one mineral studied by you.
Mineral Resources
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Answer
Economic Uses of Iron Ore —
- About 90 per cent of iron ore is used to make steel. Raw iron by itself is not as strong and hard as needed for construction and other purposes. So it is alloyed with other elements to strengthen and harden it, making it useful for construction, automobiles and other forms of transportation such as trucks, trains and train tracks.
- Powdered iron is used in manufacturing metallurgy products, magnets, high frequency cores, auto parts and catalysts.
- Radioactive iron (iron is 59 per cent) is used in medicine as tracer element and in biochemical and metallurgical research.
- Iron blue is used in paints, printing inks, plastics, cosmetics (eye shadow), artist colours, laundry blue, paper dyeing, fertilizer ingredient, baked enamel finishes for autos and appliances and industrial finishes.
- Black iron oxide is used as pigment in polishing compounds, metallurgy, medicine, and magnetic inks.
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