Spiny Oyster Shell Beads - Spiny Oyster shells are found in the Sea of Cortez, off the coast of the Baja Mexico and Baja California. As the name implies, Spiny Oysters are covered with menacing spines. They are prized for their brilliant colors (purple, orange, red and yellow) which blends nicely with turquoise. The Spiny Oyster shell has been used for adornment since ancient times and artifacts have been found in the sites of the Aztecs, Anasazi, Mogollon and Hohokam. These beads are sold 'by the strand' unless specified otherwise. Click on the image below and a new page will open offering larger views, a detailed description and purchase information.