# How is the element Magnesium made or acquired?

Jan 21, 2016

Dolomite ores, $C a M g {\left(C {O}_{3}\right)}_{2}$ are also an important commercial source. See this site for further details.
Once you have the ore mined, you still have to reduce the magnesium ion to give the metal. The ores are treated with (vast) quantities of hydrochloric acid to give $M g C {l}_{2}$. The salt is then electrolytically reduced (which process must run up a tremendous power bill). The resultant metal is strong, lightweight and a desirable commodity