AM_Chlorapatite_4 Formula: Ca4.857 Na.072 Dy.069 P3 O12 Cl2 Name: Chlorapatite Unit cell: 9.6487 9.6487 6.7652 90.0 90.0 120.0 , V=545.44 Space group: P63/M (176)

Fleet M E , Liu X , Pan Y , American Mineralogist , 85 (2000) p.1437-1446, Rare-earth elements in chlorapatite [Ca10(PO4)6(Cl)2]:, Uptake, site preference, and degradation of monoclinic structure, Sample: Dy-ClAp