Brown Lip Square Pendant with Silver Inlay. Brownlip shell is a specie of sea snails. Also called rock snails. It has dark brown spots in different shapes and forms with light to tan shade. The inside of the shell when cleaned and buffered has a more uniform coloring than the outside face of the shell. Crazycut necklaces are popular in tropical themed-jewelry which can be worn by both women and men. Also great for bracelets and anklets.