covellite

[ koh-vel-ahyt, koh-vuh-lahyt ]

noun

1. a mineral, copper sulfide, CuS, indigo in color and usually occurring as a massive coating on other copper minerals.

Word History and Origins

Origin of covellite¹

1840–50; named after Nicolò Covelli (1790–1829), Italian mineralogist who found it; -ite ¹

Example Sentences

Copper-glance readily alters to other minerals, such as malachite, covellite, melaconite and chalcopyrite.

From Project Gutenberg

Cupric sulphide, CuS, occurs in nature as the mineral covellite.

From Project Gutenberg