See color? test: sterling silver the higher the purity, the more silver white, evenly illuminated surface stalls delicate, refined. If leaded quality of a file with the Green Choka grey; such as those containing copper, noodle stalls and a rough rotten heart, a dry sense. Oxidation of the surface of sterling silver, despite the "black rust," but its color was black and Bright lead, tin, copper-nickel alloy is not glossy, color of the morning.