Black Salt

Black salt- It is very extensively used in Indian cuisine as a condiment or added to chaats, chutneys, all kind of fruits, raitas and many other savoury snacks.
Chaat masala, the famous Indian spice blend, gets its characteristic aroma from black salt. Adding this to a dish gives it a very different flavour than regular salt. In appearance this mineral is brownish pink to dark violet in crystal form, and light pink when ground into powder.

In Ayurvedic medicine Kala Namak is considered a cooling spice and is used as a laxative and digestive aid. It is also believed to relieve intestinal gas and heartburn besides being used to cure goiter.