coffinite in English dictionary coffinite Meanings and definitions of "coffinite" (mineralogy) A brown or black uranium-bearing silicate mineral. noun (mineralogy) A brown or black uranium-bearing silicate mineral. more Grammar and declension of coffinite coffinite ( plural coffinites) coffinite (plural coffinites) more Sample sentences with "coffinite" Declension Stem Try again Available translations Catalan Dutch French German Irish Italian Japanese Norwegian Nynorsk Polish Spanish Thai Ukrainian Authors
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