you may look also here..
http://www.lme.co.uk/ <img src="images/graemlins/smile.gif" alt="" />
Be careful with magnesium chips and shavings: they ingnite readily, also when wet.
A neat trick was to place a handfull of magnesium chips into a fire to make pictures of folk around that fire. Magnesium burns brightly like a flash, just longer.
Still, take care with this,OK?