Gibbsite is most frequently produced by weathering of rocks containing Al-bearing minerals and as such it is a major constituent of laterite and bauxite distributed through the weathering profile and occurring as weathering crusts.
What is Gibbsite made of?
Mineral Description
Gibbsite is an aluminum hydroxide mineral of the oxides and hydroxides group, with structural formula [Al(OH)3]. Gibbsite's structure is made up by the stacking of octahedral sheets of aluminum hydroxide.
Which type of rock is laterite?
Laterite is both a soil and a rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content.