limonite

American  

[lahy-muh-nahyt] / ˈlaɪ məˌnaɪt /

noun

Mineralogy.

1. an amorphous hydrated ferric oxide, varying in color from dark brown to yellow, used as an ore of iron.

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limonite British  

/ ˌlaɪməˈnɪtɪk, ˈlaɪməˌnaɪt /

noun

1. a common brown, black, or yellow amorphous secondary mineral that consists of hydrated ferric oxides and is a source of iron. Formula: FeO(OH). n H 2 O

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Other Word Forms

• limonitic adjective

Etymology

Origin of limonite

1815–25; < Greek leimṓn meadow + -ite ¹

Example Sentences

Another is the brokerage’s projected saprolite and limonite sales volumes of 6.7 million wet metric tons and 1.4 million wet metric tons, respectively.

From The Wall Street Journal • Apr. 20, 2026

The person did not specify how much the smelter is buying but said the purchases are of low-grade limonite ore.

From Reuters • Aug. 30, 2023

At first, the cargo hold appeared to match the description on the manifest: 2,300 tons of loose yellow rocks called limonite, a kind of iron ore.

From Washington Post • Oct. 1, 2017

Figure 5.10 A granitic rock containing biotite and amphibole which have been altered near to the rock’s surface to limonite, which is a mixture of iron oxide minerals.

From Textbooks • Jan. 1, 2015

Granite temper and limonite pigment examination,by Professor Charles Meyer 13 Appendix IV.

From Mohave Pottery by Harner, Michaell J.