Heisey Crystolite Vaseline Glass 13.5” Serving Platter

Heisey Crystolite Vaseline Glass 13.5” Serving Platter -Perfect Condition -No Chips or Cracks -Maker: Heisey Glass Company -Pattern: Crystolite -Date: 1935-1940 -See Photos for Measurements -Uranium Ghost Glowers: For every rule there is an exception. While nearly all uranium glass will glow brightly under 395nm UV light every once in a while you may come across a piece that really only seems to react under 365nm. -What and How to tell the difference between manganese glass. * Manganese Glass glows under 365nm, with a Soft Yellowish-Green Glow. * Uranium Glass glows in both 365 and 395nm If it glows a Bright Green under 365nm it's Uranium Glass. If it glows a Soft Yellow Green then it is Manganese Glass.