Black Opal Sterling Silver EarringsThese ethiopian smoked opals are a deep purple black color and have amazing red, green, and yellow flashes in the light. Smoked opals are originally white opal that have gone through a smoking process that darkens the mineral but retains the play of color, creating a mystical looking 'dark fairy' opal look. These earrings are made with solid sterling silver wire (standard 20g).