Pyrite with Quartz and Tetrahedrite

Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department  Peru (02/2016)

Specimen size: 7.8 × 6.7 × 5.3 cm = 3.07” × 2.64” × 2.09”
Main crystal size: 3.9 × 3.1 cm = 1.54” × 1.22”