Flint and Steel at 5000fps -- thanks Slow Mo guys!
Referring to: Minus.com
Watch as Redditors debate what kind of "flint" this is.
Magnesium? Ferrocerium?
If its FireSteel its made of Magnesium.
It does appear to be a FireSteel but I thought Magnesium was softer than that?
Its technically a magnesium alloy. You can buy it over at ThinkGeek
That makes sense -- and under $20, makes a good gift!