RAINBOW ONYXRainbow Onyx is an Iranian multicoloured stone. This substance has outstanding and dramatic bold veinings that are mixed with pink, brown and white colours throughout the surface to create a rainbow effect. It is an excellent choice for backlit wall panels and bar tops. While you would not backlight onyx specifically on a countertop, you can backlight an onyx backsplash that flows from your countertop to the wall behind it, or you can cascade the onyx