Aluminum

Aluminum


The most abundant metal in the Earth's crust is aluminum.


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About eight percent of the Earth's crust is aluminum, making it the most abundant metal on this planet. However, it is always found combined with various other elements, never by itself in a pure state. Two of the most frequently encountered aluminum compounds are alum and aluminum oxide.

Aluminum is soft and durable, a lightweight metal that can be easily shaped. Its color can be a silvery or dull gray. It is not magnetic and is resistant to corrosion. It can dissolve in water under the right conditions, although this does not normally occur.

Most of the world's aluminum comes from the processing of a rock called bauxite. This rock contains aluminum in one of its forms found in nature, combined with oxygen. Water is removed from the bauxite, leaving aluminum oxide, from which aluminum is refined. While most of the world's aluminum is produced in the United States, the ore is brought there from other countries, such as Canada, China, India, Brazil, Russia, and Australia.


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