Acanthite with Quartz and Pyrite

San Juan de Rayas Mine, Guanajuato, Municipio Guanajuato  Mexico

Specimen size: 6.5 × 3.2 × 3.5 cm = 2.56” × 1.26” × 1.38”
Main crystal size: 2.2 × 0.9 cm = 0.87” × 0.35”