Citation: Ghose, S.; Wan, C. (1979). Agrellite, Na(Ca,RE)2Si4O10F: A layer structure with silicate tubes. American Mineralogist, 64, pp. 563-572.
Formula: Ca1.905 Eu0.095 F Na O10 Si4
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Ca8 Eu8 F4 O40 Si16 (Ca2 Eu2 F O10 Si4)
Multiplicity: 1
Coordination sequences: