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Pronunciation varies by accent · noun
(mineralogy) An isometric-hexoctahedral mineral containing chlorine, copper, iron, nickel, sulfur, and thallium..
Use thalfenisite when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Thalfenisite means (mineralogy) An isometric-hexoctahedral mineral containing chlorine, copper, iron, nickel, sulfur, and thallium..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use thalfenisite where its definition matches the intended context.
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