矿盐, or rock salt, is a natural mineral primarily composed of sodium chloride (NaCl). It is commonly found in large deposits underground and is often harvested through mining. This type of salt is used for various purposes, including food seasoning, preserving food, and in industrial applications. In addition to its culinary uses, 矿盐 is also utilized in the production of chemicals and as a de-icing agent for roads during winter. Its unique crystalline structure and mineral content can vary, leading to different types of rock salt, such as 喜马拉雅盐 and 海盐.