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What is Aluminum?Aluminum is the third most common element in the Earth's crust. It is found in the ground in a chemical form called aluminum oxide, or alumina. In this form, it does not look like a metal. Alumina is mined out of the ground in a rock called bauxite, which also contains iron oxides and clay. Aluminum was discovered about 200 years ago, but it has taken many years of research to develop a way to separate the alumina from the bauxite to produce a useful metal. Aluminum is easy to recycle and can be combined with raw materials to make many new products.
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