Meaning of pyrargyrite

py•rar•gy•rite

Pronunciation: (pī-rär'ju-rīt"), [key]
— n.
  1. a blackish mineral, silver antimony sulfide, AgSbS, showing, when transparent, a deep ruby-red color by transmitted light; ruby silver: an ore of silver.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.