MN844

Sample ID MN844 • Cabinet E

Bauxite

8.8cm W x 7.6cm H x 2.0cm D • 1.5g
Sample TypeMineralColorRusty red, BrownLusterDull
StreakRedCleavage/FractureUneven or Earthy FractureSpecific Gravity2.6
Geographic Location/DateArkansas unknownMohs Hardness 3

This raw bauxite sample displays a dusty, rusty red coloration with subtle hues of brown, giving it an earthy, weathered appearance. Bulbous structures rise from the surface, hinting at layered mineral development and deeper tonal variation within the specimen. These rounded forms are characteristic of bauxite’s pisolitic texture, formed through intense chemical weathering in tropical climates. Composed primarily of hydrous aluminum oxides like gibbsite and boehmite, bauxite is the principal ore of aluminum. It often contains iron oxides and clay minerals that contribute to its reddish tones.