Ca5(PO4)2SiO4
Dickens B, Brown W E
Tschermaks Mineralogische und Petrographische Mitteilungen 16 (1971) 1-27
The crystal structure of Ca5(PO4)2SiO4 (silico-carnotite)
_database_code_amcsd 0015639
6.737 15.508 10.132 90 90 90 Pnma
atom      x      y     z occ  B(1,1)  B(2,2)  B(3,3)   B(1,2)   B(1,3)   B(2,3)
Ca1   .0401    .25 .1840     .005784 .000655 .005504        0  .001209        0
Ca2   .1685 -.1077 .1643     .005288 .000811 .001680  .000120  .000879  .000302
Ca3   .3680  .0922 .0647     .003250 .000572 .002046  .000096  .000623 -.000159
PM    .0253    .25 .5778     .005288 .000083 .000633        0 -.000330        0
PG    .3512  .0717 .3688  .5 .002754 .000395 .001120  .000909  .000110  .000064
SiG   .3512  .0717 .3688  .5 .002754 .000395 .001120  .000909  .000110  .000064
O1    .2564    .25 .5791     .009915 .001351 .004871        0 -.002930        0
O2   -.0679    .25 .4359     .007711 .000894 .001948        0  .000073        0
O3   -.0441  .1660 .6459     .014321 .000665 .001973 -.000574  .001282  .000239
O4    .4080 -.0058 .2741     .005728 .000624 .002460  .000407  .000513  .000175
O5    .1877  .0434 .4743     .002644 .000738 .002240 -.000287  .000073  .000143
O6    .2740  .1487 .2771     .005949 .000509 .001778  .000359  .000293  .000032
O7    .5308  .1111 .4542     .002864 .001653 .002362 -.000191 -.000147  .000207