Daily Archives: January 25, 2017


Uranium glass exhibits a characteristic green fluorescence under black or ultraviolet light. Nerdtalker, Creative Commons License

What Is Vaseline Glass or Uranium Glass?

Question: What Is Uranium Glass or Vaseline Glass? Uranium glass fluoresces with a characteristic green light under ultraviolet or black light. Uranium glass is sometimes known as Vaseline glass because its greasy appearance is akin to that of petroleum jelly. Here’s a look at what uranium glass is and how […]