The bear pendant is Sterling Silver with Rhodium or 14K Gold plating. The Black Jade is mined in Arizona, and is a true, undyed, natural black color. The surface of the material has been coated in a random pattern with 22K gold, applied in a vacuum oven at 800 degrees Celsius. Mineralogically, this material is Gem grade, Barkevikite. This material is mined at the only known deposit of Gem Barkevikite known to exist. Donated by Brent Malgarin at Elegant Gems in Edmonds, WA.