Selenopolybasite with Acanthite and Quartz

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

Specimen size: 3 × 2.1 × 2 cm = 1.18” × 0.83” × 0.79”
Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”