Citation: Takeuchi, Y.; Kawada, I.; Irimaziri, S.; Sadanaga, R. (1969). The crystal structure and polytypism of manganpyrosmalite. Mineralogical Journal, 5, pp. 450-467.
Formula: H10 Mn8 O25 Si6
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Mn15 O42 Si12 (Mn5 O14 Si4)
Multiplicity: 1
Coordination sequences: