Pyrargyrite with Calcite

St. Andreasberg mining area, Goslar District, Harz, Lower Saxony/Niedersachsen  Germany

Specimen size: 4.7 × 4.7 × 2.7 cm = 1.85” × 1.85” × 1.06”
Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”