gibbsite
noun
gibbs·ite
ˈgibˌzīt
plural -s
: a mineral Al(OH)3 consisting of light-colored translucent aluminum hydroxide occurring as monoclinic crystals and also in stalactitic and spheroidal forms
gibbsitic adjective
(ˈ)gib¦zitik
Word History
Etymology
George Gibbs †1833 American mineralogist + English -ite