A Geoscience Digital Image Library

TitleBauxite, Saline County, Arkansas
DescriptionThis earthy, pisolitic, buff to dark brown rock is a typical example of bauxite, a mixture of aluminum oxide and hydroxide minerals. The pisolites (the rounded red-brown features) in bauxites commonly show color zoning, as can be seen here. This sample is 10 cm across.
ChronostratigraphyEarly Eocene
LocationUSA ▹ Arkansas ▹ Saline. Near Bauxite.
PhotographerMike Davis. 2001-03-22.
CollectionWard’s Collection of Classic North American Rocks #55.
Key wordsbauxite, Arkansas
Tech details691 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number244