'''Aluminum''' is an abundant [[metal]] (second only to [[silicon]] in the Earth's crust) which is commonly used in packaging, housing materials, appliances, as a structural material for [[vehicle]]s as well as many other uses. Despite its abundance and usefulness, aluminum has only commonly been in use for about a century. <ref>[[United States Geological Survey]], [http://minerals.usgs.gov/minerals/pubs/commodity/aluminum/ Aluminum Statistics and Information]</ref> | '''Aluminum''' is an abundant [[metal]] (second only to [[silicon]] in the Earth's crust) which is commonly used in packaging, housing materials, appliances, as a structural material for [[vehicle]]s as well as many other uses. Despite its abundance and usefulness, aluminum has only commonly been in use for about a century. <ref>[[United States Geological Survey]], [http://minerals.usgs.gov/minerals/pubs/commodity/aluminum/ Aluminum Statistics and Information]</ref> |