AM_Fianelite Formula: Mn2 V1.62 As.38 O9 H4 Name: Fianelite Unit cell: 7.809 14.554 6.705 90.0 93.27 90.0 , V=760.80 Space group: P121/N1 (14)

Brugger J , Berlepsch P , American Mineralogist , 81 (1996) p.1270-1276, Description and crystal structure of fianelite, Mn2V(V,As)O7.2H2O, a new mineral, from Fianel, Val Ferrera, Graubunden, Switzerland