Cassiterite with Quartz and Siderite

Vale da Ermida Mine, Minas da Panasqueira, São Jorge da Beira, Covilhã Municipality, Castelo Branco District  Portugal (±1964)

Specimen size: 8 × 5 × 6.2 cm = 3.15” × 1.97” × 2.44”
Main crystal size: 1.2 × 1.1 cm = 0.47” × 0.43”