As far as the uses of silver are concerned, it is used to make fine jewelry and silverware items, as it is a very ductile and lustrous metal. In addition, one of the main characteristics of silver is that it can stay stable in oxygen and water, but it also gets tarnished when it is exposed to sulfur compounds in the air or in a water medium, resulting in a black sulfide layer. Nearly 35% of silver products are used in the photographic industry as well. Lastly, even if silver is known as a nontoxic metal, its salt sometimes tends to be poisonous.