Salt

Sea salt, coarse salt, mineral and bath salts…the word “salt” is widely used today.  Yet it does not always designate the same product.

In everyday usage, salt is above all a reference to dietary salt.  It consists of sodium chloride, a crystal composed of sodium ions Na­­­+ and chloride Cl-. It also contains weak proportions of other elements such as clay, coal, sulfates or mineral salts (magnesium, calcium, iron…). These are the elements which give salt its colour: grey, pinkish, blue, red, yellow or even black. Widely differing varieties of salt exist around the world.