MTB67CD3: Gastropod (Helix ramondi) fossilized in translucent Opal-CT (lussatite variety), with pearly luster and colors between white and sky-blue. In its original matrix, with only a slight reinforcement in the back to prevent the fossil from falling off.
Very elegant and of very good quality for the locality.
Les Rois Mine, Mur-sur-Allier, Pont-du-Château, Clermont-Ferrand District, Puy-de-Dôme Department, Auvergne-Rhône-Alpes  France

Specimen size: 4.2 × 3.9 × 3.4 cm = 1.65” × 1.54” × 1.34”

Main crystal size: 1.8 × 1.7 cm = 0.71” × 0.67”