WordReference Random House Unabridged Dictionary of American English © 2025
light′ min′eral, [Geol.]
  1. Geologyany rock-forming mineral that has a specific gravity of less than 2.8 and is generally light in color. Cf. dark mineral.

'light mineral' also found in these entries (note: many are not synonyms or translations):
dark mineral - light mineral oil - mineral oil

Forum discussions with the word(s) "light mineral" in the title:


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