Most of the world’s magnesium is processed ... Almost all metals we use in engineering are alloys; it’s exceedingly rare to use one in its pure elemental form. The only two examples that ...

Magnesium was first isolated in pure form in 1808 by Sir Humphry Davy ... Elemental magnesium is a fairly strong, silvery white, light-weight metal. It tarnishes slightly in air, and is thus ...

The iron oxide is no longer a pure metal, it is a dull, dark-coloured, metal compound. When you burn magnesium in the air in the same way that the iron did, the magnesium reacts with oxygen to ...