Himalayan salt is rock salt or halite from a mine in the Punjab Region of Pakistan, which rises from the Indo-Gangetic Plain. It is mined in the Khewra Salt Mine, located in Khewra, Jhelum District, Punjab Region, Pakistan. The salt sometimes occurs in a reddish or pink color, with some crystals having an off-white to transparent color.
The chemical composition of Himalayan salt includes 95–96% sodium chloride, contaminated with 2–3% polyhalite and small amounts of ten other minerals. The pink color is due to iron oxide. Some believe that heated salt crystals emit negative ions or positive energy waves into the air.