An ore of aluminum, found in richly forested, humid, tropical climate, particularly Nigeria. It is a reddish-brown gemstone. In African cultures it is considered a sacred stone because the color symbolizes the life's force. A.R.T. Precious & Collectible Jewelry
One of the ores from which alumina is extracted and from which aluminum is eventually smelted. Bauxite usually contains at least 45 percent aluminum oxide, and the best grades have a low silica content. About 4 pounds of bauxite is required to produce 1 pound of aluminum.
In nature, aluminium is always bound to other elements, above all in the commonly spread silicates and in sparingly soluble hydrated oxides. It is the oxide, first bauxite, that is the source of aluminium production. Bauxite is predominantly found in sub-tropical regions of the world. Bauxite takes its name from \"Les Baux\" in France where it was first discovered.
Bauxite is a naturally occurring, heterogeneous material composed primarily of one or more aluminium hydroxide minerals, plus various mixtures of silica, irontitania, aluminium silicates, and other impurities in minor or trace amounts. Bauxite is a sedimentary rock produced by in situ chemical weathering typically under tropical to subtropical climate conditions.
A clay-like mineral, bauxite is the principal ore of aluminum. It is composed of aluminum oxides and aluminum hydroxides. Bauxite is used as an abrasive, a catalyst, and a refractory for the lining of furnaces which are exposed to intense heat.
An ore from which alumina is extracted and from which aluminum is eventually smelted. Bauxite usually contains at least 45% alumina. About four pounds of bauxite are required to product one pound of aluminum.
A soil type and ore derived from the weathering of granite (sialic parent rock), and depleted of nearly all soluble elements. Aluminium oxides are virtually all that remain after calcium, potassium, sodium and silicon have been leached out. Bauxite is the principle ore of aluminium, and is predominantly found in tropical and sub-tropical regions.
Bauxite is an aluminium ore which consists largely of the Al minerals gibbsite Al(OH)3, boehmite and diaspore AlOOH, together with the iron oxides goethite and hematite, the clay mineral kaolinite and small amounts of anatase TiO2. It was named after the village Les Baux-de-Provence in southern France, where it was first discovered in 1821 by geologist Henri RouvÃ¨re.