Vaseline glass, also known as uranium/ouraline glass glows under black light and has a beautiful hue with natural light. We have a few pieces and always want more. Michael has a little black light just for the purpose of highlighting the glass.
Many old glasses were cast in molds that had traces of uranium in them and will have a slight glow under black light. Some of them begin to develop a purplish hue as they age due to this. If you have any old glasses, put them under black light and see if it glows. Another interesting detail is that some of our modern Pontarlier glasses actually have a glow. They were made using the old molds and some of the uranium imparted into the glass.
This bowl was a gift from our dear friend Stephanie and her husband Josh. Little do they know we’d had this style of bowl on watch before. I can honestly say it’s a perfect match! We’re so very lucky to have received so many wonderfully unique treasures from everyone.