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Meaning of arsenopyrite

ar•se•no•py•rite

Pronunciation: (är"su-nō-pī'rīt, är-sen"u-), [key]
— n.
  1. a common mineral, iron arsenic sulfide, FeAsS, occurring in silver-white to steel-gray crystals or masses: an ore of arsenic. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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