Citation: Moore, P. B. (1970). Crystal chemistry of the basic manganese arsenates: IV. Mixed arsenic valences in the crystal structure of synadelphite. American Mineralogist, 55, pp. 2023-2037.
Formula: As3 H13 Mn9 O22
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: As12 Mn36 O88 (As3 Mn9 O22)
Multiplicity: 1
Coordination sequences: