Wulfenite with Calcite

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

Specimen size: 8.1 × 6.8 × 4.3 cm = 3.19” × 2.68” × 1.69”
Main crystal size: 0.5 × 0.3 cm = 0.20” × 0.12”