Quote:
Originally Posted by Xellos-_^
compare to tin, copper, iron?
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Well sure. You wouldn't build a bridge with gold, but you wouldn't wire a semiconductor with iron. At the same time, you might not mass-produce gold wires, but you wouldn't coat an astronaut's faceplate with copper, either.
Gold is the best at a lot of things it does (with its high malleability, ductility, conductivity, and superior corrosion resistance), and only its rarity keeps it from being more commonly used in those applications.