Pyrite

Saint-Denis-d'Orques, La Flèche, Sarthe Department, Pays de la Loire  France (2022)

Specimen size: 12.5 × 11 × 2.6 cm = 4.92” × 4.33” × 1.02”
Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”