Item details 5 out of 5 stars. (66) reviews Shipping & Policies Electroformed Amethyst crystal pendant. Electroforming is an alchemical process, layers of gorgeous copper are formed over the area conductive paint is applied to, creating the beautiful jewelry you see here. The entire process often takes several days to complete a piece. Prior to going through a copper bath, I hand-sculpt the piece. After the bath, I hand paint on a patina to add depth and contrast to the copper and then polish. Measures 4 x 3 cm and hangs on an adjustable leather cord. May be swapped for a cotton cord upon request. Please do not expose this necklace to water. Copper oxidizes naturally overtime and water is one of the ways this natural process speeds up. Lotions, perfumes and other chemicals may also accelerate oxidation.