Size: approximately ⅞–1” in diameter.
Some dents and manufacturing imperfections can be expected.
Slightly radioactive, but harmless.
Makes a great sample if you're collecting elements!

Have you ever wanted to own your very own uranium? Probably not, especially if you're not a fan of being irradiated. But with these cool Uranium Glass Balls, you can proudly say you own a uranium specimen without worrying about the dangers of handling extremely hazardous material.

While not entirely made of uranium (which is for the best—trust us), these specimens contain trace amounts of it in a surface coating. But why would anyone coat something in such a dangerous element? In the old days, glass manufacturers added uranium to glass to create color. This was long before people fully understood what uranium was or how dangerous handling it could be. (Check out the Radium Girls movie if you want more background. Fair warning, it's a rough watch.)

Uranium is now much more strictly regulated, but vintage uranium glass is still out there. Thanks to the uranium content, these marbles glow a vivid green under ultraviolet light.