A one-of-a-kind necklace of Smithsonite and Moctezuma agate from a mine in Chihuahua, Mexico no longer being mined. Beaded necklace of amber, yellow opal, and citrine strung on sterling silver wire with a magnetic clasp. The materials are sterling silver, fine silver bezels, 18k bi-metal. Everything is hand sawn, soldered, textured, beaded on sterling silver wire, and oxidized. Please note the fine silver bezels can take on a golden glow from the oxidation process