Topic: Colouring glass after manufacture

[Frank]

An interesting page

http://www.orau.org/PTP/collection/Lichtenberg%20figures/Lichtenbergfigures.htm

[Cathy B]

Amazing. Thank you, Frank. Would the chemical in the pestle be manganese? I wonder how the shop mentioned at the bottom of this page is irradiating their stock?

[Frank]

Pestle, yes.

I think the brown colouring is a bit more disturbing than the purple - as that is well known now. I presume that the purplers have had some results on lead crystal, even if unexpected, but I have not heard of it. Where does one get the Cobalt 60 needed?

[Cathy B]

A hitherto unheard of destination for those ex-Soviet nuclear warheads that have gone missing  Either that, or they can take their place in the queue behind the terrorists waiting for more cannisters to fall off Schlumberger trucks in Western Australia... http://www.crikey.com.au/Politics/20070117-WAs-missing-radioactive-canister-the-plot-thickens.html