Sea shells are formed by the process of bio-mineralization where living organisms produce inorganic solids. Sea shells are the protective layers of marine animals called molluscs and other sea animals. The colour that a sea shell has is not just to make the shell look pretty. It often acts as a camouflage, hiding these small animals from the predators that hunt them. The different shell colouring and patterns is even a means by which different species communicate with each other. Impurities like metabolic waste products that are present when the shell is being formed, gives the shell a different colour….