Cassiterite on Quartz

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

Specimen size: 12.3 × 11 × 7 cm = 4.84” × 4.33” × 2.76”
Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”