Chalcocite [ Cu2S ]

Image of Chalcocite

Material properties

Formula Cu2S
Abbreviation Cc
IMA Status Grandfathered (pre-IMA), 1751
Crystal symmetry Hexagonal, Point group 6/mmm, Monoclinic, Point group 2/m, Space group P21/c (#14)
Classification Chalcocite-Digenite Group
Variants high, low
Related materials Wuyanzhiite
Luminescence emitters Cd, Unspecified
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags Mineral, Sulphide

Composition

Element Atoms
S 1
Cu 2
Total: 3

Specimens of Chalcocite

Name Owner Materials Phase purity Image
M2366 Chalcocite CSIRO Chalcocite (var. low) (7.9%), Chalcocite-Digenite Group, Chalcopyrite, Digenite (var. high) 7.9
M0301 Chalcocite CSIRO Bornite, Chalcocite (var. low) (6.9%), Chalcocite (var. high) (6.9%), Chalcocite-Digenite Group, Cuprite, Djurleite, Goethite, Malachite, Pyrite 6.9
M0158 Copper CSIRO Chalcocite (var. low) (5.7%), Copper, Cuprite, Quartz 5.7
M2478 Bornite CSIRO Bornite, Chalcocite (5.5%), Digenite, Quartz 5.5
M0297 Phosgenite CSIRO Anglesite, Bornite, Calcite, Chalcocite (var. low) (5.3%), Chalcocite (var. high) (5.3%), Chalcocite-Digenite Group, Djurleite, Phosgenite 5.3
M0298 Chalcocite CSIRO Bornite, Chalcocite (var. low) (2.1%), Chalcocite-Digenite Group, Chalcopyrite, Clinochlore (var. Fe), Djurleite 2.1
M2597 Bornite CSIRO Ankerite, Bornite, Calcite, Chalcocite (1.4%), Digenite, Quartz 1.4