Composition: Mainly sodium chloride, with trace minerals depending on the type. Types: Table salt – refined, often iodized. Sea salt – obtained from evaporated seawater, may contain minerals. Rock salt – mined from salt deposits, coarser texture. Himalayan pink salt – mineral-rich, pink-colored salt from Himalayan mines. Uses: Seasoning and preserving food, cooking, baking, and in some medicinal and industrial applications.