Calcite

Hochfeiler (Gran Pilastro), Ziller Valley (Zillertal), North Tyrol, Tyrol/Tirol  Austria

Specimen size: 7.7 × 5.4 × 3.9 cm = 3.03” × 2.13” × 1.54”
Main crystal size: 1.8 × 0.8 cm = 0.71” × 0.31”