Density: 19.30 g·cm−3 [in g·cm−3 – water is 1, Pb is 11.3, Os 22.6] Colour: yellow (copper and cesium are the only other coloured metallic elements) Total all-time production worldwide: 161,000 tonnes by 2009 Physical properties: most malleable and ductile of metals, unaffected by air, water or most corrosive compounds Dissolves with aqua regia, cyanide … Continue reading GOLD CHARACTERISTICS