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