Aluminum could be the 3rd most abundant aspect during the earth's crust , position only behind oxygen and silicon . It tends to make up about 9% from the earth's crust, making it essentially the most plentiful of all metals . The chemical symbol for aluminum, Al, is taken from https://aluminiumgreenhouse23344.blogoscience.com/43787263/the-2-minute-rule-for-aluminium-greenhouse