Citation: Nagashima, M.; Armbruster, T. (2010). Ardennite, tiragalloite and medaite: structural control of (As5+,V5+,Si4+)O4 tetrahedra in silicates. Mineralogical Magazine, 74, pp. 55-71.
Formula: Al4.314 As0.73 Ca1.26 Fe0.244 H6 Mg1.08 Mn3.102 O28 Si5.27
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al12 As2 Ca8 Fe4 H12 Mg4 Mn12 O56 Si12 (Al6 As Ca4 Fe2 H6 Mg2 Mn6 O28 Si6)
Multiplicity: 1