Gold and silver are very good conductors of electricity and heat. Gold, copper and silver can be alloyed (mixed) with other metals to produce new materials. Gold, copper and silver are malleable – they are easily shaped, and very ductile – they can be stretched out into very thin wires. Gold and silver do not chip, flake or corrode.
Copper extraction refers to the methods used to obtain copper from its conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.. As in all mining operations, the ore must usually be beneficiated (concentrated).