Chalcopyrite on Quartz

À Giraud Mine, La Gardette mining area, Villard-Nôtre-Dame, Le Bourg d'Oisans, Grenoble, Isère, Auvergne-Rhône-Alpes  France

Specimen size: 5.4 × 4.7 × 4.3 cm = 2.13” × 1.85” × 1.69”
Main crystal size: 0.9 × 0.6 cm = 0.35” × 0.24”