pms alumiiniumhüdroksiididest koosnev punane või pruun kivim, sisaldab lisandina raudoksiide ja -hüdroksiide, savimineraale jm... Boksiit on tähtis alumiiniumimaak, mida tarvitatakse värvide tootmisel, sorbendina, elektrokorundi saamiseks jm.
an off-white, grayish, brown, yellow, or reddish-brown rock composed of a mixture of various amorphous or crystalline hydrous aluminum oxides and aluminum hydroxides (principally gibbsite, some boehmite and diaspore), along with free silica, silt, iron hydroxides, and especially clay minerals
