Donnayite-(Y)
Tjy C T L, Pobedimskaya E A, Nadezhina T N, Khomyakov A P
Moscow University Geology Bulletin 47 (1992) 60-70
Polymorphism of donnayite (Na,TR)Sr(CO3)2*H2O
Locality: Khibiny alkaline massif
_database_code_amcsd 0018482
5.211 5.211 18.357 90 90 120 R3m
atom     x    y    z  occ Biso
Na       0    0    0  .49 1.87
Y        0    0    0  .24 1.87
Ce       0    0    0  .11 1.87
La       0    0    0  .09 1.87
Gd       0    0    0  .02 1.87
Dy       0    0    0  .02 1.87
Er       0    0    0  .01 1.87
Yb       0    0    0  .01 1.87
Pr       0    0    0  .01 1.87
Sr       0    0 .794  .71  .97
Ca       0    0 .794  .19  .97
Ba       0    0 .794  .09  .97
Na       0    0 .794  .01  .97
C        0    0 .416      1.37
O1   -.143 .143 .422       1.7
Wat2  .169 .139 .570  1/6  3.7
O2    .169 .139 .570 1/12  3.7
C2    .169 .139 .570  1/6  3.7
O3    .080 .361 .911  .25  5.6
O4    .091 .118 .653  1/6   .8