Native Silver with Proustite and Calcite on Native Arsenic

Rich areas of Native Silver cover this specimen in the form of twisted, tangled wires, often with a golden-bronze patina and occasionally as unoxidized, silver-white metal.  Surrounding these are dark massive black areas, many of which are cryptocrystalline Proustite which, under a small loupe, reveal their true blood-red translucency.  This busy specimen also contains swathes of creamy-white Calcite all sitting on a dull earthy matrix of Native Arsenic.  An excellent specimen from Medenec at Klášterec nad Ohrí in the Krušné Hory mountains in the Czech Republic.