Pyrite with Calcite

Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (2004)

Specimen size: 4.5 × 3.5 × 1.5 cm = 1.77” × 1.38” × 0.59”
Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”