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goethite

   Also found in: Encyclopedia, Wikipedia 0.02 sec.
goe·thite  (gtht, gtt)
n.
A red, yellow, or brown mineral, essentially HFeO2, one of the common constituents of rust.

[After Johann Wolfgang von Goethe.]

goethite, göthite [ˈgəʊθaɪt (German) ˈgøːtiːt]
n
(Earth Sciences / Minerals) a black, brown, or yellow mineral consisting of hydrated iron oxide in the form of orthorhombic crystals or fibrous masses. Formula: FeO(OH)
[named after Johann Wolfgang von Goethe (1749-1832), German poet, novelist, and dramatist]
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.goethite - a red or yellow or brown mineral; an oxide of iron that is a common constituent of rust
rust - a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture
iron ore - an ore from which iron can be extracted


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Increasing the pH would facilitate ferrous and ferric ion oxidation to goethite (FeOOH), which is water insoluble and thus not bioavailable for redox reactions (Lowson 1982; Singer and Stumm 1969).
Goethite formation requires water, and the mineral, when heated, can slowly convert to hematite.
381), but also in caves on dripstone and flowstone speleothems composed of calcite, epsomite, goethite, and even mud.
 
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