Luminous cobblestone is a man-made glowing stone, based on Photoluminescent pigment and special synthetic resin. When exposed to light sources, the photoluminescent pigment inside Luminous cobblestone becomes excited and glow in the dark with very stronger initially , then reducing slowly overnight. The glow is best seen in a dark area, where ambient light sources such as streetlights and moonlight are absent. Luminous cobblestone is for use in Concrete, Pavers and Terrazzo products as an exposed aggregate. Luminous cobblestone enhances safety by marking the pathway in Low Light Level conditions. In daylight the Luminous cobblestone has an Off-white colour and can be supplied in after-glow colours of Yellow-green and blue-green.