goethite

A Dictionary of Earth Sciences | 1999 | 321 words | Copyright

goethite A hydrous iron oxide, α-FeO(OH), which forms a series with lepidocrocite, γ-FeO(OH); sp. gr. 4.0; hardness 5; reddish-brown; massive or earthy; occurs as an alteration product of iron-bearing minerals in association with limonite or hematite. It is named after J. W. von Goethe (1749–1832).

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AILSA ALLABY and MICHAEL ALLABY. "goethite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>.

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