Mineral: Arsenopyrite, Marcasite, Siderite, Muscovite
Locality: Minas da Panasqueira, level 0, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
Dimensions: 7.3 × 6.9 × 3.8 cm
Description: Detail of arsenopyrite and marcasite.
All pictures, text, design © Forum FMF 2006-2024