More uranium glass marbles. | |||
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More uranium glass marbles. On any given day there are usually quite a few sets of marbles like this on offer on eBay. I waited until I got what seemed like a better-than-usual price for a bag of 25. They are mildly radioactive, and they fluoresce under black light. Source: eBay seller danniken Contributor: Theodore Gray Acquired: 6 January, 2003 Price: $8 Size: 0.5" Purity: <5% | |||
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