tin | ˈtin
A malleable, silvery, metallic element which is not easily oxidized in the air and so is used chiefly to coat iron to protect it from rusting
Tin is primarily extracted from the ore Cassiterite, where it is found as an oxide. Tin is malleable at ordinary temperatures, but brittle when heated and is part of numerous alloys. It is most commonly used in the form of tin foil, or alloyed with mercury to form the reflective surface of mirrors.