From: Mina da Panasqueira, Covilhã, Castelo Branco, Portugal.
  
Cluster of sub euhedral hexagonal prisms of Fluorapatite with greenish grey color, surronded by greenish brown lamellae of  Sericite (variety of Muscovite). With 4,9 x 3,8 x 2,5cm and 39 grams. Formed in mineralized veins of quartz, sulfides, wolframite, cassiterite, micas, fluorite, carbonates, among others, associated with the generation of a greisen dome by granitic intrusion in Paleozoic schists and graywackes.