Glowstone is resin and glow-in-the-dark powder mix made, need light or sunlight to absorb light after luminescence, general irradiation half an hour, glow more than 3 hours! (non-natural raw stone, plastic dear friends!! ) 

Luminous stone (not stone)

[material] : the main materials are rare earth, luminous powder, glass solution, resin solution, which does not harm fish and has no effect on water quality.

[specification] : about 2-3cm in size

The luminous stone needs light to shine. It can only shine under the sun or light. The longer the light takes, the longer the light takes.