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Pronunciation varies by accent · noun
(mineralogy) A monoclinic-sphenoidal orange brown mineral containing barium, calcium, fluorine, hydrogen, iron, manganese, niobium, oxygen, potassium, silicon, sodium, and titanium..
Use perraultite when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Perraultite means (mineralogy) A monoclinic-sphenoidal orange brown mineral containing barium, calcium, fluorine, hydrogen, iron, manganese, niobium, oxygen, potassium, silicon, sodium, and titanium..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use perraultite where its definition matches the intended context.
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