Acanthite with Chalcopyrite

San José Mine, San José del Progreso, Municipìo San José del Progreso, Ocotlán District, Valles Centrales Region, Oaxaca  Mexico (01/2018)

Specimen size: 4.4 × 2.5 × 2.9 cm = 1.73” × 0.98” × 1.14”
Main crystal size: 1.6 × 1.4 cm = 0.63” × 0.55”