TBX17CD5: Pyrite is not the most common mineral in the Panasqueira mines, but from time to time curious samples like this one have been found, formed by a group of very lustrous pineapple-shaped crystals with a cavity that shows a crystal of cubic morphology, also of Pyrite, adorning the entire specimen, which comes from the former collection of Francisco Fernández Ortega. A floater.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 7.7 × 7 × 4.8 cm = 3.03” × 2.76” × 1.89”

Main crystal size: 1.3 × 1 cm = 0.51” × 0.39”