Shiva shell, also know as Shiva Eye or Pacific Cat's Eye, is the protective covering at the opening of the Turban snail shell (Turbo Smaragdus). Towards the end of the snail’s natural life this protective covering (known as the operculum) detaches and sinks to the seabed.

The Eye of Shiva is the third eye in the middle of the forehead of the Hindu God Shiva. Representing wisdom it is thought to have the ability to look beyond the obvious. It symbolizes the creation, preservation and destruction of everything, the flow of life, the constant change of the universe, spiritual knowledge and creative visualization.