A very interesting combo of flattened siderite rhombohedral crystals of intense greenish color and brilliance. They are accompanied by quartz, muscovite, a group of well-defined fluorapatite crystals and very bright ferberite crystals. A piece of good size and quality. The main crystal is: 1,4 x 1 x 0,9 cm. Fluorescence UVC (fluorapatite).