AM_Carbonate-fluorapatite_2 Formula: Ca2.108 P1.362 O8.817 F.171 Name: Carbonate-fluorapatite Unit cell: 9.3593 9.3593 6.8919 90.0 90.0 120.0 , V=522.82 Space group: P63/M (176)

Perdikatsis B , Materials Science Forum , 79 (1991) p.809-814, X-ray powder diffraction study of francolite by the Rietveld method, Locality: Epirus, Greece, Sample: T = 750 C, Note: Reported structure does not reproduce reported formula or bondlengths