Monazite-(Gd) Ni Y, Hughes J M, Mariano A N American Mineralogist 80 (1995) 21-26 Crystal chemistry of the monazite and xenotime structures Locality: synthetic _database_code_amcsd 0001705 6.6435 6.8414 6.3281 90 103.976 90 P2_1/n atom x y z Biso Gd .28150 .15529 .09695 .306 P .3031 .1612 .6131 .38 O1 .2539 .0013 .4385 .80 O2 .3837 .3346 .5024 .66 O3 .4729 .1016 .8126 .62 O4 .1187 .2138 .7131 .67