ilmenite

American

[il-muh-nahyt] / ˈɪl məˌnaɪt /

noun

a very common black mineral, iron titanate, FeTiO 3 , occurring in crystals but more commonly massive.

ilmenite British

/ ˈɪlmɪˌnaɪt /

noun

a black mineral found in igneous rocks as layered deposits and in veins. It is the chief source of titanium. Composition: iron titanium oxide. Formula: FeTiO 3 . Crystal structure: hexagonal (rhombohedral)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

ilmenite Scientific

/ ĭl′mə-nīt′ /

A lustrous black to brownish rhombohedral mineral that is an ore of titanium. Ilmenite occurs in igneous rocks and is one of the principal dark minerals observed in beach sands. Chemical formula: FeTiO ₃ .

Etymology

Origin of ilmenite

1820–30; after the Ilmen Mountains ( Russian Ilʾménskie góry ) in the southern Urals, where it was first identified; see -ite ¹

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"Ilmenite materials migrated to the near side and sunk into the interior in sheetlike cascades, leaving behind a vestige that causes anomalies in the moon's gravity field, as seen by GRAIL."

From Science Daily • Apr. 8, 2024

Ilmenite and some types of hematite are weakly magnetic.

From Textbooks • Jan. 1, 2017

Ilmenite has sometimes been mistaken in the South African mines for carbonado.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" by Various

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