Description
Large set of perfect pyrargyrite crystals from Freiburg (or Freiburg im Breisgau) in Germany.
Pyrargyrite is a silver sulfosalt (silver mineral), with the chemical formula Ag₃SbS₃, and the trigonal crystal system. Rare!
The following video will give you a better idea of the quality of this sample of German pyrargyrite, and more particularly of its extraordinary red color (by transparency):
This post is also available in: French