Wulfenite

Helena Mine, Crna (Schwarzenbach), Mežica Municipality, Carinthia Region  Slovenia

Specimen size: 7.2 × 4.3 × 2.7 cm = 2.83” × 1.69” × 1.06”
Main crystal size: 1 × 0.7 cm = 0.39” × 0.28”