is called \& solid crystals of a substance by precipitating it out from its super saturated solution. During crystallisation, a salt is dissolved in water till the solution becomes saturated. The water in this solution is evaporated to get large crystals of the salt. Crystals are the purest form of a solid substance. Crystallisation is commonly used in industries to form the crystals alum from their respective solution. Extraction of Common Salt from Sea Nater Goa water tastes salty because it has salt dissolved in it. Salt is of