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Related to chalcocite: arsenopyrite, covellite


A dark gray mineral, essentially Cu2S, that is an important ore of copper.

[Alteration of obsolete chalcosine, from Greek khalkos, copper.]


(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
[C19: changed from earlier chalcosine, from Greek khalkos copper + -ite1]


(ˈkæl kəˌsaɪt)

a common mineral, cuprous sulfide, Cu2S: an important ore of copper.
[1865–70; chalco- + (anthra) cite]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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
References in periodicals archive ?
A Red Metal geologist has visited site and confirmed the width of the vein and the nature of the mineralization and noted strong oxide, supergene mineralization consisting of chalcocite, azurite, malachite and tenorite.
Among specific topics are microbial ecology in extreme acidic pit lakes of the Aberian Pyrite Belt in southwestern Spain, galactose as an inducer of the production of extracellular polymeric substances by Acidithiobacillus ferrooxidans, evidence for widespread dissimilatory hydrogen metabolism among acidophilic bacteria, immobilizing new isolated iron oxidizing bacteria on natural carriers, and the influence of pyrite on the galvanic assisted leaching of chalcocite concentrates.
is the operator of a 3000 hectare property which is known for high grade chalcocite mineralization.
The majority of the Omitiomire resource contains sulphide ore consisting mainly of chalcocite.
Additional chalcocite mineralization has been encountered on the southern side of the zone, which now extends at least 500 metres in strike length and up to 350 metres in width.
The mineralisation occurs as oxidised copper in the form of carbonates and silicates, and as sulphides in the form of chalcocite and chalcopyrite.
very minor amounts and hypogene chalcocite, sphalerite, and galena are locally
The transition zone is composed of chalcocite and bornite with malachite on fractures and a minor amount of chalcopyrite.
The flowsheet includes new equipment for oxygen flash smelting of a copper/nickel concentrate and for the flash converting of chalcocite.
Inclined hole TMC-03 ( -60x, 167x azimuth, 248' depth) encountered strong chalcocite mineralization over a 70 feet interval (110' to 180') which averaged 6.
At deeper levels, under progressively reduced conditions, secondary copper minerals, such as chalcocite (Cu[sub.
As advised on 5 December 2012, Stage I of the DeGrussa open pit has now been completed, extracting all of the contained DSO chalcocite, together with additional sulphide and copper oxide material which has been stockpiled awaiting processing.