Salt is a mineral composed primarily of sodium chloride. When used in food, especially in granulated form, it is more formally called table salt. In the form of a natural crystalline mineral, salt is
Rock salt (halite)
Salt production in Halle, Saxony-Anhalt, 1670
Ponds near Maras, Peru, fed from a mineral spring and used for salt production since pre-Inca times
A SEM image of a grain of table salt
Brine is a high-concentration solution of salt in water. In diverse contexts, brine may refer to the salt solutions ranging from about 3.5% up to about 26%. Brine forms naturally due to evaporation of
A NASA technician measures the concentration level of brine using a hydrometer at a salt evaporation pond in San Francisco.
Marine brine discharge in Chile with its surrounding marine life