Chalcopyrite

Sainte-Marie-aux-Mines, Colmar-Ribeauvillé, Haut-Rhin, Grand Est  France

Specimen size: 2.9 × 3.4 × 1.6 cm = 1.14” × 1.34” × 0.63”
Main crystal size: 2.2 × 1.8 cm = 0.87” × 0.71”