[chal.co.cite] n [alter. of chalcosine, fr. F, irreg. fr. Gk chalkos] (1868): a black or gray lustrous metallic mineral that consists of a sulfide of copper and is an important copper ore
CHALCOCITE
Meaning of CHALCOCITE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012