Cassiterite with Arsenopyrite, Siderite and Muscovite - Minas da Panasqueira, Portugal - Specimen size: 4.9 x 4.5 x 4.8 cm. Cassiterite crystal size 2.8 x 2.7 cm.

Mineral: Cassiterite with Arsenopyrite, Siderite and Muscovite
Locality: Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
Dimensions: Specimen size: 4.9 x 4.5 x 4.8 cm. Cassiterite crystal size 2.8 x 2.7 cm.

Description: On page 21 of the article "The Panasqueira mines, Castelo Branco district, Portugal" published in The Mineralogical Record. Photo: Jordi Deusedes/Jordi Fabre