This 100% natural salt was formed 250 million years ago from a prehistoric ocean, preserved in the Himalayan Mountains by tectonic pressure. This salt is remarkably pure, free from additives and pollutants.Himalayan Crystal Mineral Salt comes in many natural shades of colors. The colors of the crystal vary from pure white, pinks, oranges to deep reds, and sometimes a mixture of all. The reason for the variations of the Himalayan Crystal Mineral Salt is caused by the infusion of iron along with over 80 other minerals within the salt crystal. The richer the iron content, the richer the pinks, oranges, and reds appear in the crystal.