TA47AD5: A novelty at Tucson 2016. Aggregate of Pyrite crystals showing the cube and the pyritohedron, and partially coated by small Sphalerite crystals and slightly pink rhombohedral Calcite crystals. The sample is from a not yet widely divulged Peruvian mine.
Atalaya Mine, Huallanca District, Bolognesi Province, Ancash Department  Peru (11/2015)

Specimen size: 11.5 × 8 × 5.8 cm = 4.53” × 3.15” × 2.28”

Main crystal size: 5 × 4.7 cm = 1.97” × 1.85”