AM_Xenotime_3 Formula: Er P O4 Name: Xenotime Unit cell: 6.8508 6.8508 5.9968 90.0 90.0 90.0 , V=281.45 Space group: I41/AMD (141)

Ni Y , Hughes J M , Mariano A N , American Mineralogist , 80 (1995) p.21-26, Crystal chemistry of the monazite and xenotime structures, Er(PO4)