Owners of gold products are quite often concerned that their jewelry of so desired metal tarnishes, becoming dark. How to explain that, being precious metal which is almost not subject to oxidation, gold suddenly takes not esthetic form, uncharacteristic for it.
Concerns and doubts in authenticity of the ornament begin to overcome the person when he observes gold blackening. Malefice, damage... However, you should not do hasty negative conclusions. If in more detail to understand everything, having called to the aid knowledge and common sense, then it is possible to dispel similar myths easily. The fact is that in jewelry production not "pure" gold, but alloy which part also other metals – copper, silver, palladium are is applied. The similar combination of substances is justified and designed to make jewel stronger. Everything is good, but here some dishonest producers add more copper to alloy, saving palladium and silver. Similar jewelry creation quickly begins to darken and sometimes even leaves a black mark on skin, so, it has to be immediately returned to the seller. One more reason of the darkened gold is connected with feature of human skin on which in the course of activity fat, sulfides, dust and other particles gets that leads to education on a gold product of a film. In that case it is worth resorting to one of numerous ways of cleaning of gold jewelry; and here yours the chain, a ring, a bracelet or earrings gain bright yellow color inherent in this precious metal again. Can quite be that the answer to a question - why chemistry gold and also various pharmacological and the cosmetics which are quite often containing mercury connections and leaving dark gray spots on precious metal. Unfortunately, it is already impossible to get rid of such undesirable "pattern". Using various councils for care for gold jewelry which can be received in any jewelry salon, it is possible to keep them in a fine state many years. And then these precious products will serve long, pleasing owners with the unique magnificence.