Appendix H :: Strategic Materials — The World Factbook ...
Description: Aluminum or aluminium is a silver-white metal, very light in weight (less than three times as dense as water), yet relatively strong. Because aluminum is ductile, it can be drawn into wires or pressed into sheets or foil. It is the most abundant metallic element, and the third most abundant of all elements in the Earth''s crust, making up 8% of the crust by weight.