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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
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