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Gibbsite Aluminum hydroxide Minas Gerais, Brazil 2998.jpg
Gibbsite from Brazil
Category Hydroxide minerals
Chemical formula Al(OH)3

Gibbsite, Al(OH)3, is one of the mineral forms of aluminium hydroxide. It is often designated as γ-Al(OH)3 (but sometimes as α-Al(OH)3).[1] It is also sometimes called hydrargillite (or hydrargyllite). It is an important ore of aluminium, and one of the main parts of the rock Bauxite.

References[change | change source]

  1. N.N. Greenwood and A. Earnshaw, "Chemistry of Elements", 2nd edition, Butterworth and Heinemann, 1997