It is a soft, malleable metal. It is sometimes found as gold telluride. Because of its high density, metallic gold can be concentrated by panning . Gold is also recovered from the anode sludge from electrolytic purification of copper . Another method of recovering gold from ores is to form a gold amalgam from which the gold is separated by distilling off the mercury .
Gold has certain monetary market value.
It is also used in jewellery and in dental work. Because of its malleable property, gold can be made into very thin foils which are used in high energy particle physics experiments. The purity of gold is measured in units of karat . Pure gold is rated at 24 karat.