Wulfenite

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

Specimen size: 11.3 × 9 × 6.7 cm = 4.45” × 3.54” × 2.64”
Main crystal size: 1.6 × 1.4 cm = 0.63” × 0.55”