A Rainbow of Salt_8 unique salts to know_Planet earth produces an awe-inspiring array of natural, edible salts from the purest white, so jewel-like it shimmers; blushing pinks from deep below the Himalayas; or rich, dark black. Humans collect them, cut, flake or grind them, perhaps smoke or infuse them, package them up and make them available for sale to chefs and home cooks to play with.