Naturally occurring sodium chloride, also known as halite
| SaltWorks [PAR] Common salt, or sodium chloride, is the chemical compound NaCl Salt occurs ... 
Salt occurs naturally in many parts of the world as the mineral halite and as 
mixed ... supply (Note: Seawater also contains other dissolved solids; salt 
represents ... Special devices, called refractometers, are what is used to measure 
salinity.