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{Usually glass} having been infused with an anion oxide of the heavy metal uranium. This glass glows a ghostly green when exposed to shortwave visible and longwave ultraviolet radiation.

Often called "uranium glass" or more frequently, "Vaseline glass" due to its resemblence to Vaseline® petroleum jelly.

Note spelling: urAnated, not urEnated, urInated, urOnated, urUnated, or sometimes urYnated. :-O
{John}: Hey Craig, are you going to perform spectroscopy of the fluorescense of a uranated glass marble when irradiated with thaty spiffy new violet laser?
{Craig} Why of course!!! Let me go fire up old Betsy now!
by Telephony December 22, 2011
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