Gibbsite, Al (OH) 3, is one of the mineral forms of aluminium hydroxide. It is often designated as γ-Al (OH) 3[2]: 2 (but sometimes as α-Al (OH) 3[3]). It is also sometimes called hydrargillite (or hydrargyllite). Gibbsite is an important ore of aluminium in that it is one of three main phases that make up the rock bauxite.

2024年9月12日 · Gibbsite is a naturally occurring mineral form of aluminum hydroxide with the chemical formula Al(OH)₃. It belongs to the hydroxides and oxides mineral class and is one of the three main components of bauxite, the primary ore of aluminum.

Named by John Torrey in 1822 in honor of Colonel George Gibbs [January 7, 1777, Newport, RI - August 5, 1834, Sunswick Farms, NY], of Newport, Rhode Island, USA. Gibbs was a wealthy import merchant who was a geologist and mineralogist.

Gibbsite is one of the three component minerals of the economically important aluminum ore Bauxite. Gibbsite was first discovered in 1820 by Chester Dewey (1784-1867) of Williams College, Massachusetts.

Gibbsite (Al(OH) 3) has a monoclinic structure (space group P2 1 /n). 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 (Fig. 6 B). It is also formed under very low ...

Gibbsite, also known as Hydrargillite, is an aluminum hydroxide mineral that crystallizes in the form of tabular crystals, masses, tiny concretions, and a spherical botryoidal pattern. It can be found in a variety of colors such as green, white, blue, yellow, red, and even colorless.

Polymorphous with bayerite, doyleite, and nordstrandite. Occurrence: A typical product of weathering of aluminous minerals, common in lateritic soils and bauxite. Also formed in low-temperature hydrothermal and metamorphic environments, replacing aluminous minerals. Diaspore, b ̈ohmite, corundum, kaolinite, goethite.

Gibbsite, the mineral aluminum hydroxide [Al (OH)3] an important constituent of bauxite (q.v.) deposits, particularly those in the Western Hemisphere, where it occurs as white, glassy crystals, earthy masses, or crusts. In significant deposits it is of …

Gibbsite. Comments: Transparent to white, tabular-prismatic gibbsite crystals. Location: Saga Quarry, Langesundfjord, Oslo Region, Norway. Scale: Crystal size 1 mm. © John Veevaert

Gibbsite is by far the most common crystalline Al (hydr)oxide in soil environments. It is a major mineral in soils of the tropics and subtropics where it may be the dominant mineral in the clay fraction.