Updated About encyclopedia.com content Print Article Share Article
views updated

hydroxides Applied to minerals whose chemical composition includes the OH radical, and often to those with water molecules, whose presence gives hydrated oxides. Among the important hydroxide minerals are: brucite, Mg(OH)2; gibbsite, Al(OH)3; diaspore, α-AlO(OH); boehmite, γ-AlO(OH); limonite, FeO(OH).nH2O; and goethite, α-FeO(OH).