The sustainability of Copper is evident in the fact that it can be repeatedly recycled without losing its properties. It is estimated that around 80% of the copper that has ever been mined is still in use. Copper is a naturally occurring element. Present in the earth’s crust, in oceans, lakes and rivers, sources of copper range from minute trace amounts to rich mine deposits. Copper is an essential element, meaning that all plants, fishes, and animals need copper to function properly.Copper is naturally present in the Earth’s crust, at a concentration of about 67 parts per million.