Magnesium
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Magnesium is a chemical element; it has symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point, and high chemical reactivity. Like the other alkaline earth me
CSIRO Science Image 2893 Crystalised magnesium
Magnesium is brittle, and fractures along shear bands when its thickness is reduced by only 10% by cold rolling (top). However, after alloying Mg with 1% Al and 0.1% Ca, its thickness could be reduced by 54% using the same process (bottom).
Magnesium sheets and ingots
An Iranian worker tends to the Pidgeon process
Aluminium
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Aluminium or aluminum is a chemical element; it has symbol Al and atomic number 13. It has a density lower than other common metals, about one-third that of steel. Aluminium has a great affinity towar
Magnesium
…metal burns with a brilliant-white light. The metal is obtained mainly by electrolysis of magnesium salts obtained from brine. It is less dense than aluminium and is used primarily as a component in strong and lightweight alloys that contain aluminium. In the cosmos, magnesium is produced in large, aging stars…
Aluminium 4
Aluminium ingot
Three 1.0 pound (0.454 kg) bullion ingots of triple nine aluminium, iron, and copper etched with their scientific details.
Bauxite, a major aluminium ore. The red-brown color is due to the presence of iron oxide minerals.