Quartz with Siderite and Pyrite

Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (05/2008)

Specimen size: 8.7 × 5.9 × 5.3 cm = 3.43” × 2.32” × 2.09”
Main crystal size: 7 × 4.6 cm = 2.76” × 1.81”