Shiva Eye Shell set in high polished sterling silver. -Shiva Shell, sometimes called Pacific Cat’s Eye has been believed to open the Third Eye Chakra which transforms and mutes negative energy. It is a stunning natural gem made of calcium carbonate and has a brown and/or black band that is carved by a snail into the shape of the eye. The gem’s name is derived from the Lord Shivas third eye in the middle of the idol’s forehead. Shiva's eye is a significant divination and transforming crystal which helps to find a new path in life. The snails that occupy these shells discard them naturally before dying.