Cassiterite with Quartz, Fluorapatite and Arsenopyrite

Minas da Panasqueira, level 1, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region  Portugal (2018)

Specimen size: 10.4 × 6.8 × 3.9 cm = 4.09” × 2.68” × 1.54”
Main crystal size: 1.3 × 0.7 cm = 0.51” × 0.28”