Antracites (or Antrachas or Anthrax)

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Antracites (or Antrachas or Anthrax)

A stone, sparkling like fire and girdled with a white vein, supposed by Albertus Magnus to be the carbuncle. It was said to cure "imposthumes" (purulent swellings). If smeared with oil it loses its color but sparkles the more for being dipped in water.

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