| rdfs:comment | - User can create, shape and manipulate Iron and iron compounds, including pig iron, steel, cast iron, etc. Iron is a silvery-white, lustrous, malleable, ductile, magnetic or magnetizable, metallic element, and the second most abundant metal and fourth most abundant element in Earth's crust, but it occurs rarely as a free metal, occasionally in natural alloys (especially in meteorites), and in hundreds of minerals and ores.
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| abstract | - User can create, shape and manipulate Iron and iron compounds, including pig iron, steel, cast iron, etc. Iron is a silvery-white, lustrous, malleable, ductile, magnetic or magnetizable, metallic element, and the second most abundant metal and fourth most abundant element in Earth's crust, but it occurs rarely as a free metal, occasionally in natural alloys (especially in meteorites), and in hundreds of minerals and ores. Iron is the most widely used of all the metals, its low cost and high strength make it indispensable in engineering applications such as the construction of machinery and machine tools, automobiles, the hulls of large ships, and structural components for buildings. Since pure iron is quite soft, it is most commonly combined with alloying elements to make steel.
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