Image credit: R. Weller, Cochise College


USGS National Minerals Information Center

What is bauxite and alumina?

Credit: Scott Horvath, USGS. Public domain

Interactive 3D Model

3D model courtesy of Prof. Dexter Perkins via license CC4.0-BY


image credit: R. Weller, Cochise College

bauxite chemical formula

Al(OH)3 with possible additional Al and (OH). Bauxite is not a single mineral. bauxite is a sedimentary rock of of one or more aluminum-bearing minerals. Thus, a single chemical compound does not usually characterize this material.

(interpreting mineral chemical formulas: atoms, molecules, elements)


not electrically conductive

not magnetic

not reactive


Mineralogical Society of America