Mineral: Fluorapatite (Apatite Group) with Siderite and Quartz
Locality: Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
Dimensions: 13,0 x 11,0 x 20,5 cm

Description: Main crystal size: 9,8 cm Two large translucent purple crystals, perfectly intact and having developed on a matrix of micro-crystallized siderite and small crystals of quartz Mim number 1533 Photographer: Augustin de Valence (Ainu) Publication: "Rocks & Minerals: Vol. 98, No.6 Nov/Dec 2023"

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