"Oak Ridge" Scherzo & Uranium Glass
"Vaseline" glass was a variation of Depression glass made in the 20s and 30s. It contained trace amounts of uranium (a stabilized version that is safe to wear, but does register on a geiger counter) that gave it a pretty chartreuse color by day... but turn on a black light and WOW! They glow! Really cool, and a conversation piece. I carry around a black light keychain to show how cool they are!