What is Vaseline Glass?
Vaseline Glass is a particular color of yellow-green glass that is made by adding Uranium Dioxide to the ingredients when the glass formula is made. The addition of the Uranium Dioxide makes the glass color yellow-green. Vaseline Glass is ALWAYS verifiable by using an ultraviolet light (blacklight) on the glass item. When this is done, the glass turns a bright florescent GREEN! Sometimes, even the most trained eye can be fooled by a piece of glass that looks like Vaseline Glass, but will not ‘glow’ or fluoresce bright green under a blacklight. Not all yellow-green glass will turn florescent GREEN when a UV light is shined on it.
