hercynite

American

[hur-suh-nahyt] / ˈhɜr səˌnaɪt /

noun

a black oxide mineral, FeAl 2 O 4 , of the spinel group.

Etymology

Origin of hercynite

< German Hercynit (1839), equivalent to Latin Hercyn ( ia silva ) the Hercynian Forest (referring to the Erz Mountains and other wooded ranges N of the Danube) + German -it -ite ¹

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hercynite

Some of the alumina and iron oxide may occasionally be chemically combined, so as to form an iron spinel, or hercynite.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" by Various

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023