Aluminum is a silvery white solid metal at normal pressure and temperature. It has chemical symbol Al and atomic number 13.
Aluminium is very abundant and is used in pure form for a lot of different things, like kitchen foil, mirrors, coins and industrial components. It is light, soft and malleable, which makes it a material ideal to work with. At very high temperatures it can burn and emit a lot of energy. So the production of aluminium from its compounds in earth's minerals like bauxite takes a lot of energy, much more than recycling used aluminium. The latter is more environmentally friendly and also cheap.