Tercia Serpent/Snake Crystal Earrings by Alchemy Gothic. Triple coiled snake earrings, holding dark rainbow finish genuine Swarovski crystals, with surgical steel posts. These serpents, each revealing three coils, symbolize the pagan/Wiccan Rule of Three: that all energy transmitted into the world, be it positive or negative, is returned threefold to that same person. 39mm (1.54") high and 20mm (0.79") across. Made of lead-free fine English pewter exclusively by Alchemy Gothic.