Most such objects are now considered antiques or retro-era collectibles, although there has been a minor revival in art glassware. Uranium glass was once made into tableware and household items, but fell out of widespread use when the availability of uranium to most industries was sharply curtailed during the Cold War in the 1940s to 1990s. James Powell’s Whitefriars glass company in London, England was one of the first to market the glowing glass, but other manufacturers were also quick to realise its sales potential and Uranium glass was produced across Europe and later North America.
Having been first identified in 1789 by a German chemist, uranium was soon being added to decorative glass for its fluorescent effect. The proportion usually varies from trace levels to about two percent uranium by weight, although some 20th-century pieces were made with up to 25 percent uranium.
Uranium glass is glass which has had uranium, usually in oxide diuranate form, added to a glass mix before melting for colouration. Uranium glass used as lead-in seals in a vacuum capacitor
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