Citation: Sirotinkin, S.P.; Tchijov, S.M.; Kovba, L.M.; Pokrovskii, A.N. (1978). Structure cristalline de sulfates doubles de sodium et de terres rares. Journal of the Less-Common Metals, 58, pp. 101-105.
Formula: Er Na O8 S2
Chemical name: Na Er (S O4)2
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;0;1)
Dimensionality: 2
Formula: Er2 O16 S4 (Er O8 S2)
Multiplicity: 1