Pure gold is a soft metal of yellow color. Reddish hue to some pieces of gold, such as coins, with admixture of other metals, particularly copper. In thin films of gold shines green. Gold has vysokogradientnogo and low electrical resistance.
Gold — very heavy metal: the density of pure gold is $ 19.32 g/cm3 (ball of pure gold 46,237 mm in diameter has a mass of 1 kg). Among metals the density takes the seventh place after osmium, iridium, rhenium, platinum, neptunium and plutonium. Comparable to gold has the density of tungsten (19,25). The high density of gold makes it the prey, making even simple processes — for example, flushing at the gateway, can provide a high degree of extraction of gold from leached rocks.