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Pronunciation varies by accent · noun
(mineralogy) A grey mineral consisting mostly of platinum sulfide (PtS)..
Use cooperite when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Cooperite means (mineralogy) A grey mineral consisting mostly of platinum sulfide (PtS)..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use cooperite where its definition matches the intended context.
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