Citation: Moore, P. B.; Sen Gupta, P. K.; Le Page, Y. (1991). The remarkable langbanite structure type: Crystal structure, chemical crystallography and relation to some other cation close-packed structures. American Mineralogist, 76, pp. 1408-1425.
Formula: Mn13 O24 Sb Si2
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Mn39 O72 Sb3 Si6 (Mn13 O24 Sb Si2)
Multiplicity: 1
Coordination sequences: