AM_Apatite-(CaCl)_2 Formula: Ca4.899 Na.05 La.052 P3 O12 Cl2 Name: Apatite-(CaCl) Unit cell: 9.6499 9.6499 6.7725 90.0 90.0 120.0 , V=546.17 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: La-ClAp