Citation: Francis, C. A.; Ribbe, P. H. (1978). Crystal structures of the humite minerals: V. Magnesian manganhumite. American Mineralogist, 63, pp. 874-877.
Formula: H2 Mg2.1 Mn4.9 O14 Si3
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Mg16 Mn28 O56 Si12 (Mg4 Mn7 O14 Si3)
Multiplicity: 1
Coordination sequences: