Baratovite
Menchetti S, Sabelli C
American Mineralogist 64 (1979) 383-389
The crystal structure of baratovite
16.941 9.746 20.907 90 112.50 90 C2/c
atom      x       y      z occ Biso
Ti   .33460  .07052 .25190 .87  .36
Zr   .33460  .07052 .25190 .13  .36
Ca1  .22017 -.07256 .51329      .62
Ca2  .14518  .28319 .50695      .64
Ca3  .07260  .63830 .50006      .58
Ca4       0       0     .5      .60
K         0  .07116    .25     2.52
Si1  .61404  .26552 .36061      .46
Si2  .43105  .32388 .36004      .46
Si3  .36923  .63544 .35952      .47
Si4  .49150  .87983 .36058      .46
Si5  .67409  .81512 .35930      .46
Si6  .73852  .50777 .36230      .46
Li1      .5   .0843    .25      .90
Li2   .2465   .3281  .2488     1.00
O1   .65859  .40248 .34516     1.05
O2   .65949  .22375 .44124      .78
O3   .61253  .14422 .30831      .83
O4   .51498  .30992 .34054      .94
O5   .35284  .24005 .30572      .81
O6   .45297  .28340 .43964      .91
O7   .41045  .48836 .35154     1.23
O8   .27384  .65317 .30411      .89
O9   .37909  .65109 .43871      .92
O10  .42732  .74862 .34060      .95
O11  .52081  .92000 .44137      .80
O12  .44899  .00464 .30851      .75
O13  .57291  .82063 .34558     1.07
O14  .72900  .85295 .43888      .89
O15  .69539  .90634 .30421      .81
O16  .69225  .65698 .34453     1.03
O17  .78585  .47590 .31054      .79
O18  .80087  .49875 .44299      .87
F    .10199  .06911 .45949     1.14