I heard that Tibetan Yin will wear brighter, is it true? How can I know the authenticity of Tibetan silver

Tibetan silver, according to historical definition, is a alloy of about 30%of the silver, but the Tibetan silver in the market now has almost no silver, but it is just a handicraft of white copper alloy. White copper is a copper -zinc alloy. In ancient times, foreign countries were also called Chinese silver. The purity of Tibetan silver was not high, so there were more impurities. The black of general jewelry was specifically left during processing. I don't want to wash off Tibetan silver with toothpaste. It was originally a commercial term. At first, the merchants put the white copper or mixed with a small amount of silver. Known as Tibetan silver. In fact, traditional Tibetan jewelry will not use this material. In recent years, due to the rise of Tibetan jewelry culture, a large number of traditional Tibetan jewelry in southern China has been used. The price is loved by those ordinary consumers. The "Tibetan Silver" we see is actually aluminum products such as tin aluminum. There are basically no types of silver in the market for sale, that is, in the Tibetan area, many Tibetan jewelry is also wholesale from the south. It also belongs to imitation. In the category of Tibetan silver, it is difficult to buy real Tibetan silver! Because many sellers will tell imitation silver as Tibetan silver, consumers will not distinguish them at all. As a popular jewelry, in fact, imitation of Tibetan silver can achieve customers' pursuit of Tibetan style, and there is no need to like it because it is imitated. In fact, it is also very beautiful!