Cassiterite with Arsenopyrite, Fluorapatite, Calcite and Muscovite

Minas da Panasqueira, level 0, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (07/2014)

Specimen size: 6.5 × 5.8 × 3.6 cm = 2.56” × 2.28” × 1.42”
Main crystal size: 1.4 × 1.3 cm = 0.55” × 0.51”