Aluminium

Aluminium is a silvery white, ductile metal classed in the boron family of chemical elements. Because aluminium is very chemically reactive, on planets it may only be commonly found combined with any of over 270 other minerals. In space, where Aluminium is formed by the action of gamma rays on lighter atomic elements, the metal may be found in its pure elemental form. Aluminium is very resistant to corrosion and possesses a low density, is nonmagnetic and nonsparking, and is a good thermal and electrical conductor. Aluminium is extremely important in the composition of various alloys essential to transportation, construction, and aerospace applications.