anon (01/26/83)
I heard on the radio this am that some ceramic or ceramic-glazed type jewelry was recently found to be mildly radioactive. It was said to be cheap jewelry, and the recommended solution was to discard it.
mmt (01/30/83)
Isn't it reasonable to assume that anything made from stones that come from the ground will be mildly radioactive? This includes jewellery, houses, roads etc. Shall we discard them all? Let's worry about radioactivity when it reaches dangerous levels (i.e. noticeably above the natural background at, say, Denver). Martin Taylor
crs (02/02/83)
I read recently (I don't recall where) that some manufacturers were irradiating gem-stones (perhaps synthetic ones) to change or control their color. I no longer remember the details of the article but it seems that jewelry was turning up with significant amounts of residual radioactivity. Sorry I can't remember where I read it; perhaps some- one else can. Charlie Sorsby