Calzirtite
Rastsvetaeva R K, Pushcharovskii D Y, Spiridonov E M, Gekimyants V M
Crystallography Reports 40 (1995) 746-748
Crystal structure of ordered calzirtite Ca2Zr5Ti2O16
Locality: Zelenets mine of the South Ural massif's Kusa titanium-
magnetite deposit, Russia
_database_code_amcsd 0019484
15.189 15.189 10.111 90 90 90 *I4_1/acd
0 -.25 .125
atom     x     y      z occ Biso
Ca   .6678 .0822   .375      .64
Zr1  .5134 .2366   .875  .5 1.50
Zr2  .8383 .2321  .3604     1.02
Ti   .3320 .0820   .375      .55
O1   .2435 .1719  .7054      .75
O2   .0654 .1707 -.0059      .77
O3   .6141 .1667  .0014      .96
O4     .25 .0373     .5      .78
O5     .25 .1806      0      .70