Sentence Examples


  • It was discovered in 1886 by C. Winkler in argyrodite, a mineral found at Freiberg in Saxony.
  • The element is of extremely rare occurrence, being met with only in argyrodite and, to a very small extent, in euxenite.
  • It may be obtained from argyrodite by heating the mineral in a current of hydrogen; or by heating the dioxide to redness with carbon.
  • Other pairs of isomorphous argentiferous minerals are: the cubic polybasite, 9Ag2S Sb2S3, and pearceite, 9Ag2S As2S3; and the germanium minerals argyrodite, 4Ag 2 S GeS2, and canfieldite, 4Ag 2 S (Sn, Ge) S2.
 
 

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