Search Result for "chalcocite": 
Wordnet 3.0

NOUN (1)

1. a heavy grey mineral that is an ore of copper;
[syn: chalcocite, copper glance]


The Collaborative International Dictionary of English v.0.48:

Chalcocite \Chal"co*cite\, n. [Gr. chalko`s brass.] (Min.) Native copper sulphide, called also copper glance, and vitreous copper; a mineral of a black color and metallic luster. [Formerly written chalcosine.] [1913 Webster] Chalcographer
WordNet (r) 3.0 (2006):

chalcocite n 1: a heavy grey mineral that is an ore of copper [syn: chalcocite, copper glance]