gibbsite

[ gib-zahyt ]
/ ˈgɪb zaɪt /

noun

a mineral, hydrated aluminum oxide, Al2O3·3H2O, occurring in whitish or grayish crystals and masses: an important constituent of bauxite ore.
Also called hydrargillite.

Origin of gibbsite

1815–25; named after George Gibbs (died 1833), American mineralogist; see -ite1

British Dictionary definitions for gibbsite

gibbsite
/ (ˈɡɪbzaɪt) /

noun

a mineral consisting of hydrated aluminium oxide: a constituent of bauxite and a source of alumina. Formula: Al(OH) 3

Word Origin for gibbsite

C19: named after George Gibbs (died 1833), American mineralogist