These are not glow in the dark, they contain uranium which reacts to UV light (shown here under 395nm). Background radiation is around 20cpm to give you an idea of how weak it is, they are perfectly safe.
Rare Uranium Vaseline Glass Small Statue 2" Uranium Yellow Glass Sign Art Glass
Mouse Uranium Vaseline Glass Yellow Matte Frosted Glass Small Animal Figurine
VINTAGE Art Deco Uranium Vaseline Glass Perfume Bottle w/ Stopper | Glows UV
20 x URANIUM / VASELINE GLASS SMALL MARBLES (10 mm) SHOWING UV FLUORESCENCE
5 x URANIUM / VASELINE GLASS SMALL MARBLES (10 mm) SHOWING UV FLUORESCENCE
???? Vintage Fenton Daisy & Button Uranium Vaseline Glass Top Hat – 2.5” – Glows!
