This is this shells natural color, polished down to its mother of pearl. Rarer to find than its sister pink top shell. A classical pyramidal shape, these shells are found in tidal rock pools as well as deep ocean depths and feed on seaweed and sponges. Top shells—like many mollusks—produce a flat, thin, circular trap door or operculum, which is often translucent or black. The trap door grows at the end of the mollusk as it withdraws inside the shell. Females are larger than males. Top snails are a popular source of food in many parts of the world. The shell is used to make pearlized buttons for clothing sold throughout the world and is one of the leading industries in the Philippine Islands. Priced per shell.