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goethite

noun
goe·​thite | \ ˈgər-ˌtīt How to pronounce goethite (audio) , ˈgə-\

Definition of goethite

: a common brown mineral that consists of an iron hydrogen oxide and is the commonest constituent of many forms of natural rust

Examples of goethite in a Sentence

Recent Examples on the Web

 But a range of other rocks appear in the archaeological record, from the yellow ochre goethite to the often-dramatic specular hematite, sometimes called specularite. — Gemma Tarlach, Discover Magazine, "Pigment of Our Imagination," 23 Mar. 2018 To complicate matters even more, when heated to at least 480 degrees Fahrenheit, yellow ochre’s crystal structure changes and the goethite can transform into hematite, or red ochre. — Gemma Tarlach, Discover Magazine, "Pigment of Our Imagination," 23 Mar. 2018

First Known Use of goethite

circa 1823, in the meaning defined above

History and Etymology for goethite

German Göthit, from J. W. von Goethe

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