Zirconolite Rossell H J Nature 283 (1980) 282-283 Zirconolite - a fluorite-related superstructure Locality: Synthetic Note polytype Zirconolite-2M _database_code_amcsd 0014676 12.4458 7.2734 11.3942 90 100.533 90 C2/c atom x y z occ CaM1 .3718 .1245 .4952 ZrM2 .1225 .1222 -.0258 .93 TiM2 .1225 .1222 -.0258 .07 TiM3 .2498 .1223 .7465 TiM4 .5 .055 .25 .86 ZrM4 .5 .055 .25 .14 TiM5 0 .127 .25 O1 .310 .133 .275 O2 .470 .146 .102 O3 .197 .083 .573 O4 .403 .174 .719 O5 .702 .169 .590 O6 -.001 .111 .414 O7 .119 .055 .788