It features gorgeous butterscotch onyx shades that emit a romantic glow, and sweeping wrought iron metal bands that add visual interest. A rustic contemporary look that gives a dramatic flair to your home this design serves as a piece of art in itself. It features gorgeous butterscotch onyx shades that emit a romantic glow and sweeping wrought iron metal bands that add visual interest. Onyx is a mottled quartz that takes a high polish. As the favorite medium for Greek and Roman sculptors and architects onyx has become a cultural symbol of tradition and refined taste.