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Chalcocite (/ˈkælkəˌsaɪt/), copper(I)
sulfide (Cu2S), is an
important copper ore mineral. It is
opaque and dark gray to black, with a
metallic luster....
- has the
chemical compound Cu2S. It is
found in
nature as the
mineral chalcocite. It has a
narrow range of
stoichiometry ranging from Cu1.997S to Cu2.000S...
- occurrences. It is
typically ****ociated with and
often intergrown with
chalcocite, covellite, djurleite, bornite,
chalcopyrite and pyrite. The type locality...
- microorganisms. Less commonly, the
replacement minerals in
petrified wood are
chalcocite or
other sulfide minerals.
These have been
mined as
copper ore at locations...
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particularly noted in
copper ore
deposits where the
copper sulfide minerals chalcocite (Cu2S),
covellite (CuS),
digenite (Cu18S10), and
djurleite (Cu31S16) are...
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aggregates in a
secondary alkaline environment altering chalcocite. ****ociated
minerals include chalcocite, atacamite,
native copper, diopside, grossular, and...
-
chalcocite,
covellite and
digenite in the
enriched zone of
copper orebodies. It is a
member of the
chalcocite group, and very
similar to
chalcocite,...
- chalcopyrite.
Chalcopyrite and
bornite are both
typically replaced by
chalcocite and
covellite in the
supergene enrichment zone of
copper deposits. Bornite...
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Image Name
Formula %
Copper when pure
Chalcopyrite CuFeS2 34.5
Chalcocite Cu2S 79.8
Covellite CuS 66.5
Bornite 2Cu2S·CuS·FeS 63.3
Tetrahedrite Cu3SbS3...
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economically important ores.
Prominent copper sulfide minerals include Cu2S (
chalcocite) and CuS (covellite). In the
mining industry, the
minerals bornite or...
