Taking the chemical composition of natural salt into consideration, the Himalayan Rock Salt is by far the purest form in which it exists. The following table includes detailed information about its chemical composition.

    Parameter	Value 

Chloride as NACL	
95.01%
Calcium as Ca+2	0.19%
Magnesium Mg+2	0.08%
Sulphate  SO4	1.94%
Iron Fe+2	0.19 ppm
Moisture	0.07%
Water Insoluble	1.32%