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/ˈkæl.kəˌsaɪt/ · noun
(mineralogy) Cuprous sulfide, Cu₂S, an important ore of copper..
Their croppings are either entirely barren or contain only a moderate amount of copper, but much richer ore is ordinarily found just above the chalcocite zone.
Use chalcocite when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Chalcocite means (mineralogy) Cuprous sulfide, Cu₂S, an important ore of copper..
Common synonyms include chalcosine, copper-glance, redruthite, copper glance.
The opposite depends on the specific sense.
Their croppings are either entirely barren or contain only a moderate amount of copper, but much richer ore is ordinarily found just above the chalcocite zone.
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