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Pronunciation varies by accent · noun
(mineralogy) A shiny indigo-blue sulfide mineral, CuS, that is an ore of copper..
Use covellite when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Covellite means (mineralogy) A shiny indigo-blue sulfide mineral, CuS, that is an ore of copper..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use covellite where its definition matches the intended context.
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