Calcite

Largentière Mines, Largentière, Vallon-Pont-d'Arc, Ardèche, Auvergne-Rhône-Alpes  France (±1970)

Specimen size: 10 × 8.5 × 6.6 cm = 3.94” × 3.35” × 2.60”
Main crystal size: 5.9 × 5 cm = 2.32” × 1.97”