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: 21.2 × 16.7 × 5.5 cm = 8.35” × 6.57” × 2.17” Main crystal size: 18.7 × 12.3 cm = 7.36” × 4.84”
