Indium is a soft, metallic, ductile minor metal.

Indium has a very low melting point making it easy to work with. Indium has many semiconductor applications  such as indium antimonide (InSb), indium phosphide (InP), and indium arsenide (InAs). Indium is also used in photovoltaics as the semiconductor copper indium gallium diselenide (CIGS).