Siderite with Pyrite

Saint-Pierre-de-Mésage, Vizille, Grenoble, Isère, Auvergne-Rhône-Alpes  France

Specimen size: 8.7 × 6.8 × 6.6 cm = 3.43” × 2.68” × 2.60”
Main crystal size: 5 × 3.1 cm = 1.97” × 1.22”