Burbankite
Belovitskaya Yu V, Pekov I V, Kabalov Yu K
Crystallography Reports 45 (2000) 26-29
Refinement of the crystal structures of low-rare-earth
and "typical" burbankites by the Rietveld method
Locality: Khibiny Massif, Kola Peninsula, Russia
Sample: B-108
Note: x02 adjusted to satisfy symmetry constraints
_database_code_amcsd 0012365
10.5313 10.5313 6.4829 90 90 120 P6_3mc
atom     x     y    z  occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
NaA  .5237 .4763 .319 .728  1.7   .006   .006   .011      0   .003  -.003
CaA  .5237 .4763 .319 .231  1.7   .006   .006   .011      0   .003  -.003
YA   .5237 .4763 .319  .01  1.7   .006   .006   .011      0   .003  -.003
SrB  .8410 .1590    0 .633  .88  .0021  .0021  .0091  .0010   .001  -.001
BaB  .8410 .1590    0 .106  .88  .0021  .0021  .0091  .0010   .001  -.001
CeB  .8410 .1590    0 .074  .88  .0021  .0021  .0091  .0010   .001  -.001
LaB  .8410 .1590    0 .038  .88  .0021  .0021  .0091  .0010   .001  -.001
NdB  .8410 .1590    0 .016  .88  .0021  .0021  .0091  .0010   .001  -.001
PrB  .8410 .1590    0 .006  .88  .0021  .0021  .0091  .0010   .001  -.001
CaB  .8410 .1590    0 .047  .88  .0021  .0021  .0091  .0010   .001  -.001
C1    .799  .201  .53       2.7
C2       0     0  .85       2.0
C3     1/3   2/3  .49       2.0
O1    .376  .088 .628       1.6
O2    .930  .070 .352       2.9
O3    .406  .594  .49       1.7
O4    .770  .230 .358       3.1