This method produced a dangerously high degree of long-term residual radioactivity and has been discontinued, although radium-treated green diamonds are still found in markets occasionally and can be detected by a Geiger counter.
This method produced a dangerously high degree of long-term residual radioactivity. This method has been discontinued. Radium-treated green diamonds are still found in markets occasionally. This method can be detected by a Geiger counter.