Did you know that #aluminium is the most abundant metal in the earths crust but it is not naturally found in its pure metallic form? Until the development of modern #aluminium smelting techniques in 1886 and increasingly availability of electricity in the last century, aluminium was in fact more expensive than gold! https://lnkd.in/gRVB9nKR
Visualizing the Abundance of Elements in the Earth’s Crust 🌍️ https://lnkd.in/guJR8NFG