Accueil >  Term: emery
emery

A dull, blue-black mineral, allied in composition to the sapphire, but containing a varying quantity of iron oxide; is found in large masses; is exceedingly hard, and largely used in polishing metals, plate-glass, and precious stones.

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Créateur

  • JohannesDD
  • (Sydney, Australia)

  •  (V.I.P) 14638 points
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