Keywords: Corundum-3D-balls.png Ball-and-stick model of part of the crystal structure of corundum α-Al<sub>2</sub>O<sub>3</sub> Own 2008-06-15 Ben Mills Benjah-bmm27 Images by Ben Mills Ball-and-stick models Corundum structure Strukturbericht D51 Crystal structures of oxides Crystal structures of aluminium salts |