Sphalerite with Quartz and Calcite

María Jesús Mine (Lobeto Mine), Sol Viejo, Cabanzón, Herrerías, Comarca Saja-Nansa, Cantabria  Spain (2012-2013)

Specimen size: 7.7 × 5.8 × 4.5 cm = 3.03” × 2.28” × 1.77”
Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”