Glass artist Evan Chambers,  from Northern California achieves the exquisite iridescent colors in the glass by using minerals such as cobalt oxide and metals such as silver and tin. The decoration technique is know as feathering. The feathering process takes place before the glass is blown while in the molten stage. The Catherdral Lamp is iridescent gold amber lamp with his signature leaf feather surface decoration. Lamp comes with 18" copper chain. 9"H x 4" W