Glow in the dark pebble

Glow in the dark pebble a special staining and photoluminescent pigments , luminescent pigments to  produce other colors , for example: blue, green , yellow, orange , red.Luminous color Luminescent pigment luminous photoluminescent pigments  yellow-green , is the most recognizable human eye color ( wavelength of about 530nm). Color luminescent emission color with the pigment is very close to the body color , but a lower visual brightnessGlowing rocks