Acanthite (Se-bearing) with Polybasite (Se-bearing) and Calcite

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

Specimen size: 3.8 × 3.8 × 3.7 cm = 1.50” × 1.50” × 1.46”
Main crystal size: 0.5 × 0.5 cm = 0.20” × 0.20”