AM_Fluorapatite_9 Formula: Ca4.497 Na.178 La.325 (P2.856 Si.144) O12 F Name: Fluorapatite Unit cell: 9.4123 9.4123 6.908 90.0 90.0 120.0 , V=530.00 Space group: P63/M (176)

Fleet M E , Pan Y , American Mineralogist , 80 (1995) p.329-335, Site preference of rare earth elements in fluorapatite, Sample: La-FAp