The poster did an experiment with paper and foil to see how penetrating the radiation was, with a somewhat disturbing result

http://beadcollector.net/cgi-bin/anyboard.cgi?fvp=/openforum/&cmd=get&cG=9313533303&zu=3931353330&v=2&gV=0&p=

Also a post on glowing green uranium glass under a UV light, as well as what could be cadmium yellow glowing oranger under UV.

http://beadcollector.net/cgi-bin/anyboard.cgi?fvp=/openforum/&cmd=iYz&aK=90979&iZz=90979&gV=0&kQz=&aO=1&iWz=0

And one more showing a few different types of radioactive Czech glass:
http://beadcollector.net/cgi-bin/anyboard.cgi?fvp=/openforum/&cmd=get&cG=9313433303&zu=3931343239&v=2&gV=0&p=