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Pronunciation varies by accent · noun
(mineralogy) A monoclinic black mineral containing aluminum, chromium, hydrogen, oxygen, and silicon..
Use rilandite when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Rilandite means (mineralogy) A monoclinic black mineral containing aluminum, chromium, hydrogen, oxygen, and silicon..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use rilandite where its definition matches the intended context.
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