1. The aluminium hydroxide in the lateritic bauxite deposits is almost exclusively gibbsite . 2. Gibbsite and bayerite are monoclinic, whereas doyleite and nordstrandite are triclinic forms.3. As well as the process of catalyst substrates from gibbsite were also investigated. 4. Minerals formed in laterite nickel deposits include gibbsite . 5. Now, the main question is about gibbsite formation in the middle of kaolin series. 6. The basic structure of corundum is identical to gibbsite except the hydroxides are replaced by oxygen. 7. Gibbsite 's structure is closely related to the structure of brucite, Mg ( OH ) 2.8. The different symmetry of gibbsite and brucite is due to the different way that the layers are stacked. 9. It occurs in association with basaluminite, gibbsite , epsomite, gypsum, celestine, dolomite and goethite. 10. We thus should find the hyper-aluminous materials, containing gibbsite in the lower series of kaolin.