Coroņa Shaft, Josefa-Veneros Norte vein, La Collada mining area, zona minera de La Collada, Siero, Comarca Oviedo, Principality of Asturias (Asturias) Spain (1980)
Specimen size: 8.1 × 8.0 × 3.5 cm = 3.19” × 3.15” × 1.38” Main crystal size: 6.0 × 8.0 cm = 2.36” × 3.15”