Citation: Tjy, C. T. L.; Pobedimskaya, E. A.; Nadezhina, T. N.; Khomyakov, A. P. (1992). Polymorphism of donnayite (Na,TR)Sr(CO3)2*H2O. Moscow University Geology Bulletin, 47, pp. 60-70.
Formula: C2 H2 Ba0.03 Ca0.15 Ce0.2 Dy0.03 Er0.01 Gd0.02 La0.1 Na0.4 Nd0.05 O7 Pr0.01 Sr0.73 Y0.26 Yb0.01
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: C6 Ce3 Dy3 Er3 Gd3 La3 Na3 Nd3 O21 Pr3 Y3 Yb3 (C2 Ce Dy Er Gd La Na Nd O7 Pr Y Yb)
Multiplicity: 1