Do you know the classification rules of silver jewelry

Do you know the classification rules of silver jewellery? Silver jewellery, pure white sterling silver, is generally only suitable for making plain silver jewellery because of its soft texture. If you add 7.5% copper to change its hardness and enhance its toughness, you can make inlaid silver ornaments. This kind of silver-copper alloy is called Standard silver in the world. Jewelry made with this kind of standard silver is very popular with the world because of its beautiful color, tough texture, firmness and wear resistance. Imitation Silver Jewelry 　 There are two high-quality materials that are similar to silver in terms of color, texture and luster, and both can be made into imitation silver jewelry. One is an alloy containing 60% copper, 20% nickel, and 20% zinc. The jewelry made can be similar to silver and is called silver jewelry. One is an alloy containing aluminum, lead, chromium, and germanium. These four metals all have a silver-white appearance and metallic luster, and each has its own characteristics. It is a good material for imitation silver ornaments and the first choice for ethnic minorities in my country to make imitation silver ornaments. The material is also deeply loved by people in Arab countries, Europe and the United States and other countries. Although the difference between silver jewelry and imitation silver jewelry is very small and very real, they can also be distinguished. Silver jewelry will be stamped with the 'S' or 'Sterling' seal, while imitation silver jewelry does not; silver cannot be in contact with sulfur compounds, otherwise it will turn gray and dark, but imitation silver jewelry does not have this phenomenon; imitation silver jewelry has a light touch, The hardness is large, and it is easy to distinguish it from silver jewelry.