I have one very old uranium crystalware specimen sitting here - been in family for ages - it's awfully beautiful looking and our deep-blue LED christmas lights

I have one very old uranium crystalware specimen sitting here - been in family for ages - it's awfully beautiful looking and our deep-blue LED christmas lights actually make it glow eerie. The deeper-blue (indigo) LEDs reach into the wavelengths that the uranium glass glows at!