Question

What is Rock Salt ? Why is it in Brown Colour ?

Answer 1

Answer:

Rock salt is brown in colour due to the impurities present in it. Large salt crystals are called rock salt due to the presence of impurities it is present in brown colour. The chemical name of rock salt is sodium chloride and the formula is NaCl.

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Answer 2

Answer:

Halite ( /ˈhælaɪt/ or /ˈheɪlaɪt/), commonly known as rock salt, is a type of salt, the mineral (natural) form of sodium chloride (Na Cl). Halite forms isometric crystals.

Explanation:

The salt occurs in beds of sedimentary evaporite minerals. This is caused by large lakes and seas drying up.However other geological influences mean the rock salt's colour can sometimes go from clear, to pink, to dark brown. Rock salt is brown in colour due to the impurities present in it