<P> From 1889 through 2013, a total of 94 million metric tons of bauxite were mined in the US, about 90 percent of which came from central Arkansas . </P> <P> In 2013 the US mined 128,000 metric tons of bauxite . </P> <P> Bauxite forms by the weathering of aluminum - rich and silica - poor rocks in hot, humid, climates, at places with good drainage . Under the proper conditions, weathering disintegrates the aluminium silicate minerals, and dissolves and removes the silica, creating bauxite . The mined US bauxite deposits have all been in the southeastern United States . </P> <P> About 90 percent of American - mined bauxite has come from deposits in central Arkansas . The Arkansas deposits were formed during the Eocene from weathering of intrusions of nepheline syenite, an aluminium - rich, silicate - poor, igneous rock . </P>

Where is bauxite mined in the united states