Who actually makes europium glass?
I'm curious about eventually one day setting up a display with a rainbow of all the UV reactive glasses but for that rainbow I'd very much like europium red blue and purple I've heard some people say that some old glass contains red europium and I've seen people saying that isn't true so I'm curious if it's something I can actually run into in an antique store or if not what extent would I have to go to to get my hands on some? Same for the blue and purple is there anywhere that manufacturers it for general purchase or any specific hobbyist that make and sell it?