"Glass colored with uranium salts is easily identified because uranium fluoresces bright green under ultraviolet light (3). Luckily, since these items emit only negligibly tiny amounts of radiation, they are safe to handle, eat and drink from"

https://campusarch.msu.edu/?p=5712#:~:text=Glass%20colored%20with%20uranium%20salts,and%20drink%20from%20(3).