chal·co·cite (k l k -s t )n. A dark gray mineral, essentially Cu2S, that is an important ore of copper. [Alteration of obsolete chalcosine, from Greek khalkos, copper.] |
chalcocite [ˈkælkəˌsaɪt]
n
(Earth Sciences / Minerals) a lead-grey or black mineral, found as a copper ore or in veins. It is a source of copper. Composition: copper sulphide. Formula: Cu2S. Crystal structure: orthorhombic
[changed from earlier chalcosine, from Greek khalkos copper + -ite1]
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | chalcocite - a heavy grey mineral that is an ore of copper atomic number 29, copper, Cu - a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition |
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