chalcocite

[ kal-kuh-sahyt ]
/ ˈkæl kəˌsaɪt /

noun

a common mineral, cuprous sulfide, Cu2S: an important ore of copper.

Origin of chalcocite

1865–70; irregular chalco- + (anthra)cite

Example sentences from the Web for chalcocite

British Dictionary definitions for chalcocite

chalcocite
/ (ˈkælkəˌsaɪt) /

noun

a lead-grey or black mineral, found as a copper ore or in veins. It is a source of copper. Composition: copper sulphide. Formula: Cu 2 S. Crystal structure: orthorhombic

Word Origin for chalcocite

C19: changed from earlier chalcosine, from Greek khalkos copper + -ite 1