“An interesting colorless crystal of fluorapatite which has an aspect hemimorphic (crystal otherwise terminated at both ends), simulating a lower symmetry (Class 6). Also present are the faces of the third order (the small rectangles that surround the left part of the faces of the prism and arranged alternately) that are useful for the identification of the proper class of symmetry of the fluorapatite, which is the 6 / m. There are also internal fluid, arranged in the vertical direction. Collection and photo of Gianfranco Ciccolini. Nikon D610, bellows, Schneider Kreuznach 28mm; f:4. Focal using 5.6. ”