aluminium

did you know...

Aluminium is the most abundant metallic element in the Earth's crust (believed to be 7.5 to 8.1 percent), and it was once considered a precious metal more valuable than gold. Napoleon III, emperor of the French, is reputed to have given a banquet where the most honoured guests were given aluminium utensils, while the other guests had to make do with gold ones.

Aluminium was selected as the material to be used for the apex of the Washington Monument in 1884, a time when one ounce (30 grams) cost the daily wage of a common worker on the project;It was the largest single piece of aluminium cast at the time. At the time of the monument's construction, aluminium was more expensive than silver, gold, or platinum.

link to wikipedia page