Arsenopyrite with Muscovite

Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±2005)

Specimen size: 6.6 × 6.2 × 3.6 cm = 2.60” × 2.44” × 1.42”
Main crystal size: 4.1 × 1.4 cm = 1.61” × 0.55”