TC220NT: Group of Pyrite crystals of cubic habit with distinct polycrystalline growths. This specimen is very old, with crystals much larger than those known before, and it comes from Minas de Villabona, a locality much less prolific than the nearby Moscona mine in Solís.
Villabona Mines, Barrio de la Estación, Villabona, Llanera, Comarca del Nora, Principality of Asturias (Asturias)  Spain (1964)

Specimen size: 7.2 × 7.1 × 4.9 cm = 2.83” × 2.80” × 1.93”

Main crystal size: 2.5 × 2 cm = 0.98” × 0.79”