Most of the world's supply comes from Malaya, Bolivia, Indonesia, Zaire, Thailand, and Nigeria. The US produces almost none. Occurrences have been found in Alaska and California. It is obtained by reducing the ore with coal in a reverberatory furnace. Composed of nine stable isotopes and eighteen unstable.
Ordinary tin is a silver-white metal, malleable, somewhat ductile, highly crystalline structure.
It has two allotropic forms at room temperature.