I was rather pleased to pick this up, especially when I discovered that the greenish canes at 12.00 and 6.00 appear to contain uranium. The ground is amethyst black. The clear glass is greyish and fluoresces a dusty green under my UV light. The pontil mark is ground. It measures 2.5 diameter, 1.75 deep. I'd like confirmation that it is Vasart and an idea of date if poss please.