Natural crystallization of salt is a process that occurs when water containing dissolved salt evaporates, leaving behind solid salt crystals. This often occurs in arid or semi-arid areas where evaporation is higher than precipitation. Table salt or sodium chloride (NaCl) is usually produced by the evaporation of brine in sunny areas; brine is collected from the sea or saltwater lakes. This water contains a variety of salts, with sodium chloride being the predominant salt. This method requires a large space in which water can naturally evaporate and crystals can grow.