Siderite with Quartz and Arsenopyrite

Minas da Panasqueira, level 0, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (11/2014)

Specimen size: 4.3 × 3.3 × 2 cm = 1.69” × 1.30” × 0.79”
Main crystal size: 2.5 × 2 cm = 0.98” × 0.79”