Tuesday, 26 December 2017

Uranium glass marbles

If you're concerned that these Uranium Glass Marbles are simply standard marbles with phosphorescent material or somesuch, worry not! Amazon assures the consumer that they'll get a geiger counter going.

... A Ludlum Model 44-9 Geiger-Mueller probe connected to a Ludlum Model 3 when in direct contact will read several hundred cpm.

That said, a lot of the reviewers talk of using blacklight to see them, which does suggest an absolute minimum of radioactive material augmented by fluorescent paint. There's six in each pack of 5/8" marbles.