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Lost marbles (uranium variety).
An example of the element Uranium

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Uranium Lost marbles uranium variety
Lost marbles (uranium variety).
This lovely, lovely uranium glass marble and another like it were lost when they were confiscated from a student who brought them to school, not realizing that schools tend to freak out about radioactive things. Uranium glass contains a very small amount of radioactive uranium, so they are, technically, radioactive, and the student, who wishes to remain anonymous, made the further mistake of taking with him the certificate provided by the original source (my favorite mad scientist supplier, United Nuclear) certifying that they definitely are genuinely radioactive marbles. If they weren't radioactive, they would be a rip-off. But really, it's a very small amount, fused into the glass, and of the least harmful variety (alpha particles). The school could really have found something else to worry about, in my opinion.
They were turned in to me by a concerned parent, who felt I might provide them with a good home, which I am only too happy to do, as I didn't realize that uranium marbles came in such a large and lovely variety. All my other marbles (none of which I have lost, I should add) are much smaller.
Source: Anonymous
Contributor: Anonymous
Acquired: 11 August, 2007
Text Updated: 11 August, 2007
Price: Donated
Size: 1"
Purity: <5%
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