what is magnesium used for
Duralumin and magnalium are alloys of magnesium. The metal is also used in pyrotechnics, especially in incendiary bombs, signals, and flares, and as a fuse for thermite. It is used in photographic flashbulbs and is added to some rocket and missile fuels. It is used in the preparation of malleable cast iron.ore on magnesium Uses from Infoplease: 1  magnesium: Uses-Uses Magnesium is a commercially important metal with many uses. 2  It is only two thirds as dense as 3  ... aluminum-aluminum aluminum, called in British countries aluminium, metallic chemical element; symbol Al; ...