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Pronunciation varies by accent · noun
(mineralogy) A soft mineral, mostly containing manganese oxides, that occurs in manganese nodules..
Use birnessite when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Birnessite means (mineralogy) A soft mineral, mostly containing manganese oxides, that occurs in manganese nodules..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use birnessite where its definition matches the intended context.
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