http://ajherman.deviantart.com/art/thermite-92367175

this is what several hundred lbs of mg looks like when its on fire. <img src="/forums/images/graemlins/smile.gif" alt="" />
we lit it off with several hundred lbs of thermite and a garden gnome. <img src="/forums/images/graemlins/cool.gif" alt="" />

there is a pic of the set up and some more of the light emitted by the reaction.