brookite

[ brook-ahyt ]

noun

, Mineralogy.

1. a brown, red, or black mineral, titanium dioxide, TiO 2 , trimorphous with rutile and anatase.

brookite

/ ˈbrʊkaɪt /

noun

1. a reddish-brown to black mineral consisting of titanium oxide in orthorhombic crystalline form: occurs in silica veins. Formula: TiO 2

Word History and Origins

Origin of brookite¹

1875–80; named after H. J. Brooke (1771–1857), English mineralogist; -ite ¹

Word History and Origins

Origin of brookite¹

C19: named after Henry J. Brooke (died 1857), English mineralogist

Example Sentences

Minute crystals of brookite have been detected with anatase and rutile in the iron-ore of Cleveland in Yorkshire.

From Project Gutenberg

Brookite occurs only as crystals, never in compact masses, and is usually associated with either anatase or rutile.

From Project Gutenberg

Titanic acid occurs in nature crystallized in anatase, arkansite, brookite, and rutile.

From Project Gutenberg