WordReference Random House Unabridged Dictionary of American English © 2020
gold dust′, 
  • Metallurgygold in fine particles.
    • 1695–1705

    Collins Concise English Dictionary © HarperCollins Publishers::
    gold dust n
    1. gold in the form of small particles or powder, as found in placer-mining
    'gold dust' also found in these entries (note: many are not synonyms or translations):
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