Marcasite

Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (07/2014)

Specimen size: 14.4 × 2.3 × 2.1 cm = 5.67” × 0.91” × 0.83”
Main crystal size: 1.8 × 0.3 cm = 0.71” × 0.12”