Sample of bauxite, the principal ore of the metal aluminium. Bauxite is a mineral formed of a mixture of aluminium hydroxide and aluminium oxide hydroxides, typically with some iron and titanium oxides. Aluminium is extracted from bauxite by the Bayer and then the Hall-Heroult processes. It is the most common metal in the Earth's crust and the most widely used after iron. | |
Licence : | Droits gérés |
Crédit : | Science Photo Library / RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA |
Model Release : | Non requis |
Durée : | 28 Secondes |
Aspect ratio : | 16/9 |
Restrictions : | - |