Hydroxylapatite Formula: Ca5 P3 O13 H Name: Hydroxylapatite Unit cell: 9.4166 9.4166 6.8745 90.0 90.0 120.0 , V=527.91 Space group: P63/M (176)
Hughes J M , Cameron M , Crowley K D , American Mineralogist , 74 (1989) p.870-876, Structural variations in natural F, OH, and Cl apatites, Locality: Holly Springs, Georgia, USA