digenite


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digenite

[′dī·jə‚nīt]
(mineralogy)
Cu9S5 A blue to black mineral consisting of an isometric copper sulfide having a variable deficiency in copper. Also known as alpha chalcocite; blue chalcocite.
References in periodicals archive ?
The powder diffraction pattern was consistent with the digenite phase of copper sulfide that has a stoichiometry of [Cu.
The uranium minerals are accompanied by chalcopyrite, digenite and malachite, all copper minerals and some gold.
High grade copper-bearing replacement of primary chalcopyrite by the secondary minerals bornite and digenite is present only at the base of the oxidation zone.
Mineralization in the enrichment blanket is dominated by black sooty chalcocite, with lesser digenite and covellite.
More than 90 percent of the copper mineralization, all of which occurs below the gold cap, is chalcocite, digenite and minor chalcopyrite and cuprite.