Citation: Koehler, Juergen; Tyagi, A.K. (1999). Crystal structure of heptastrontium hexaerbium triacontafluoride oxide, Sr~7~Er~6~F~30~O. Zeitschrift f\"ur Kristallographie - New Crystal Structures, 214, pp. 27-28.
Formula: Er6 F30 O Sr7
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Er18 F96 (Er3 F16)
Multiplicity: 1