Spiny Oyster has been used throughout the ages as a rading currency. It was used as a currency from as far south as present day Colombia all the way up to the American Southwest. The color can range from a pale yellow (more shallow waters) to a deep purple (found in deper waters).
These beautiful two stone purple spiny oyster earrings are stunning! The longer slab is connected to the post by a hinge, allowing for movement of the piece.