Page 134 - The Periodic Table Book
P. 134

13
             Al     Aluminium


                                                                                                   Discovery: 1825
                                                                                   13    13    14  State: Solid
             Forms                                                                 This crystal contains    This aluminium ore
                                                      Alum crystal                 compounds.       source of the element.
                                                                                   aluminium and sulfur
                                                                                                     is the world’s main


                                                                                       Bauxite
                                            Variscite

























                                                                         Pellets of pure aluminium
                                                                          refined in a laboratory


















                                                                         Reflective surface

                                                              This slice of  aluminium
                                                              phosphate mineral has
                                                              a turquoise green colour.



           Although aluminium is the most common               also be found in other minerals, including
           metal in Earth’s rocks, scientists did not          variscite. Today, aluminium is often recycled
           discover it until the early 1800s. Even then,       because producing it anew requires 15 times
           it took a further 80 years for scientists to work    more energy. The metal makes a strong, shiny
           out how to use the ore bauxite to extract           foil when rolled flat, and is useful for storing
    132    large amounts of pure aluminium. It can             foods. A fire protection suit made from





   132-133_Aluminium.indd   132                                                                                 02/12/16   10:06 pm
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