Bauxite, aluminium ore. Macrophotograph of bauxite, the mineral that is the principal ore of aluminium. It is not a true mineral, instead consisting o

---

Bauxite, aluminium ore. Macrophotograph of bauxite, the mineral that is the principal ore of aluminium. It is not a true mineral, instead consisting of a mixture of various aluminium oxides. It is mined primarily in Australia, Russia, Brazil and some areas around the Caribbean Sea. This sample, from New Queensland, Australia, is displaying a pisolitic appearance. A pisolite is a sphere on the surface of a mineral with a diameter greater than 2 millimetres.

---

Size: 3692px × 4734px
Photo credit: © DIRK WIERSMA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: aluminium, australia, australian, bauxite, bytroidal, close-, earth, geological, geology, globular, horizontal, macrophotograph, mineral, ore, pisolite, pisolitic, queensland, rock, science, sphere, spheres, stone