Citation: Finch, R. J.; Ewing, R. C. (1997). Clarkeite: New chemical and structural data. American Mineralogist, 82, pp. 607-619.
Formula: Na O4 U
List type: interleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: O4 U (O4 U)
Multiplicity: 1