Encyclopedia of Astrobiology

Living Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James Cleaves, Daniele Pinti, José Cernicharo Quintanilla, Michel Viso


  • Daniele L. Pinti
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27833-4_660-3



Goethite is a hydrated iron oxide, or iron oxyhydroxide, of chemical formula FeO(OH) (orthorhombic crystal system). Goethite forms by weathering of iron-rich minerals and it is commonly found in soils. It may also be precipitated by groundwater in low-temperature environments (authigenic goethite in marine and lacustrine sediments). Silica-associated goethite has been found in hydrothermal deposits. The occurrence of goethite on planetary surfaces could be used as an indicator of low-temperature weathering with the involvement of liquid water.

See Also


Iron Oxide Bioorganic Chemistry Liquid Water Chemical Formula Crystal System 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.GEOTOP Research Center for Geochemistry and GeodynamicsUniversité du Québec à MontréalMontréalCanada