'canary glass'

"[I]f one dissolved uranyl salts in water, the solutions would be fluorescent--one part in a million was sufficient. The fluorescence could also be transferred to glass, and uranium glass or 'canary glass' had been very popular in Victorian and Edwardian houses. . . . Canary glass transmitted yellow light and was usually yellow to look through, but fluoresced a brilliant emerald green under the impact of the shorter wavelengths in daylight, so it would often appear to shimmer, shifting between green and yellow depending on the angle of illumination."

--Oliver Sacks, Uncle Tungsten: Memories of a Chemical Boyhood, 2001.