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/ˈbaɪəˌtaɪt/ · noun
(mineralogy) A dark brown mica; it is a mixed aluminosilicate and fluoride of potassium, magnesium and iron..
Use biotite when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Biotite means (mineralogy) A dark brown mica; it is a mixed aluminosilicate and fluoride of potassium, magnesium and iron..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use biotite where its definition matches the intended context.
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