Siderite with Quartz and inclusions

Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (1997)

Specimen size: 11.8 × 8.6 × 5.5 cm = 4.65” × 3.39” × 2.17”
Main crystal size: 1.7 × 1.6 cm = 0.67” × 0.63”