Deloneite
Rastsvetaeva R K, Khomyakov A P
Crystallography Reports 41 (1996) 789-792
Structural features of a new naturally occurring representative
of the fluorapatite-deloneite series
Locality: Khibini alkaline massif, Kola Peninsula, Russia
_database_code_amcsd 0012350
9.485 9.485 7.000 90 90 120 P6_3
atom     x     y      z occ Biso
CaA1   1/3   2/3 -.0042  .2  .85
SrA1   1/3   2/3 -.0042  .5  .85
NaA1   1/3   2/3 -.0042  .3  .85
CaA2   1/3   2/3  .4987      .90
CaA3 .0128 .2519  .2496  .7  .69
SrA3 .0128 .2519  .2496  .2  .69
CeA3 .0128 .2519  .2496  .1  .69
P    .6305 .0290  .2448      .44
O1    .324  .254   .420      1.7
O2    .156  .671   .244      1.3
O3    .536  .121   .263      1.2
O4    .355  .263   .068      1.0
F        0     0   .276 2/3  2.8
OH       0     0   .276 1/3  2.8