Quartz with inclusions, Sphalerite and Siderite

Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region  Portugal (1994)

Specimen size: 13.4 × 7.8 × 6.2 cm = 5.28” × 3.07” × 2.44”
Main crystal size: 11.5 × 2.8 cm = 4.53” × 1.10”