📚 noun • entry_id 15498
chalcocite
/ˈkæl.kəˌsaɪt/
Meanings (ES + gloss)
calcosina
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.
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