Dec 07, 2012· Thus the method of extraction of a metal from its ore depends on the . magnesium; aluminium; extract by . Metal Profile: Magnesium – Metals – The Metals Industry. Traditionally magnesium is produced from dolomite and magnesite ore, as well as magnesium . to extract the metal from dolomite . use cast magnesiumaluminum (MgAl) alloys ...