Two-sided specimen. On the one hand we have the matrix covered by numerous crystals of siderite, some with small inclusions of schorl-dravite and pyrite. On the other side we have a fully coated matrix by small crystals of schorl-dravite, accompanied by arsenopyrite, siderite and muscovite. At the top, on the divide, a rich group of fluorapatite crystals with violet color zoning, short prism and interpenetrating each other. A mineral rarity. The main crystal is: 2,4 x 1,3 x 0,3 cm. Fluorescence UVC.