Citation: Brugger, J.; Berlepsch, P. (1996). Description and crystal structure of fianelite, Mn2V(V,As)O7.2H2O, a new mineral from Fianel, Val Ferrera, Graubunden, Switzerland. American Mineralogist, 81, pp. 1270-1276.
Formula: As0.38 H4 Mn2 O9 V1.62
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: As4 Mn8 O36 V8 (As Mn2 O9 V2)
Multiplicity: 1