On 24 February 2011 14:35, Charles Geilfuss <charles.geilfuss@xxxxxxxxx> wrote:
> Another thing too, and I'm sure someone more knowledgeable will correct
> me if I'm wrong, but I've always been under the impression that exposure of
> inert, inorganic material to ionizing radiation does not make it
> radioactive. It may induce chemical changes (hence the color change of
> precious stones) but does not convert it to a radiative material. To do so
> the object must be coated or impregnated with another radioactive substance.
>
Depends on the nature of the radiation. Neutrons will make most
elements that have radioisotopes radioactive, I believe. I also
believe that includes all metals and there will be metal atoms in the
stone somewhere.
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