Sterling silver and copper forged hoop necklace with prehnite

Sterling silver  and copper forged hoop necklace with a prehnite gemstone. The sterling and copper hoops have been hammer textured. The copper hoop has been colored with a chemical patina and sealed to protect against tarnish. The pendent is just under 2 inches long and just over 1.5 wide. Chain is adjustable 26-28 inches.