Opal-CT (variety lussatite)

Mur-sur-Allier, Pont-du-Château, Clermont-Ferrand District, Puy-de-Dôme Department, Auvergne-Rhône-Alpes  France

Specimen size: 4.8 × 3.3 × 2.2 cm = 1.89” × 1.30” × 0.87”
Main crystal size: 2.1 × 0.5 cm = 0.83” × 0.20”