Crystal means peace and purity, symbolizing love. Crystal is one of the few high-quality minerals in nature and one of the precious gems that people like. The purity and elegance of crystal make it a symbol of purity. Crystal not only has a beautiful appearance, but also has been entrusted with wishes and prayers by many people. People believe that crystal can bring peace of mind and physical health. Crystal is closely related to the love between men and women. Crystal is also considered as the embodiment of a girl's tears, symbolizing unyielding love. In modern society, the application of crystal is not limited to the field of culture and art. In the jewelry industry, crystal is widely used to make jewelry and accessories, and it is favored because of its unique luster and color. In addition, crystals are also used to make musical instruments, optical instruments, decorations and handicrafts. In the field of science, crystals are also used to study and explore the fields of earth geology and mineralogy.