Remember putting glow-in-the-dark stars and planets on your bedroom ceiling and walls as a kid?... well now you can do it with your whole driveway! How awesome is that!?...
"Glowstone is a synthetic aggregate, based on Photoluminescent pigment and synthetic resin. When exposed to light sources, the photoluminescent pigment within Glowstone becomes chemically excited and will afterglow (i.e. glow in the dark), initially very strongly, then reducing slowly overnight. The glow is best seen in a dark area, where ambient light sources such as streetlights and moonlight are absent."
Glowstone is for use in Concrete, Pavers and Terrazzo products as an exposed aggregate and it enhances safety by marking the pathway in Low Light Level conditions. In daylight the Glowstone has an Off-white colour and can be supplied in after-glow colours of Yellow-green and blue-green.
source:http://www.jncht.net/Photoluminescent_Stone.htm
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