Rock salt is different. In certain regions of the world, buried hundreds of feet below the ground are remains of evaporated seas. This mineral — halite — gets harvested by drilling the rock ...

Also called rock salt, road salt is halite, the mineral form of naturally mined sodium chloride, according to the American Chemistry Council. The salt lowers the freezing point of water ...

It is found dissolved in Earth's oceans. Mineral deposits of salt, known as halite or rock salt, formed from the evaporation and crystallization of ancient seas. Depending on the source ...

Sodium chloride (rock salt or halite) is often used on roads, driveways and sidewalks. It's relatively inexpensive and keeps ice from accumulating on surfaces. It can damage concrete, kill ...