Magnesium is the lightest structural material, about 1.8 grams per cubic centimetre. magnesium is the 8th most abundant element in the earth’s crust. It occurs naturally in Dolomite, Magnesite, Carnallite and Chloride (sea water). Magnesium is produced from sea water, brines and magnesium-bearing minerals which offer unlimited reserves. Magnesium is 75% lighter than steel, 33% lighter...