| Aluminum is a very abundant
metal with many purposes. It is extruded from an ore know as bauxite. This
clay-like substance contains not only aluminum, but many other substances.
Workmen has a process in which they extract these substances. so to acquire
the aluminum. By grinding the bauxite and placing it in a pressurized tank,
they can remove the other substances because they form a mass. After filtering,
a liquid remains which is placed through several other processes. Finally
a white, powdery chemical called alumina is yeilded. This is a mixture
that contains aluminum and oxygen. Using electricity, workmen can seperate
these two materials to produce the metal. This comes in many forms and
has a bright silvery luster. |