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From The Collaborative International Dictionary of English v.0.44 [gcide]: Chalcocite \Chal"co*cite\, noun [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}.] From WordNet (r) 2.0 [wn]: chalcocite noun: a heavy gray mineral that is an ore of copper [syn: {copper glance}] |
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