Citation: Tarantino S C; Zema M (2005). Mixing and ordering behavior in manganocolumbite-ferrocolumbite solid solution: A single-crystal X-ray diffraction study Sample: KRA n3p Qm=1 from Kragero, Norway. American Mineralogist, 90, pp. 1291-1300.
Formula: Ca0.008 Fe0.806 Mn0.148 Nb1.802 O6 Sc0.001 Sn0.003 Ta0.152 Ti0.08
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Ca4 Fe4 Mn4 Nb8 O24 Sc4 Sn4 Ta8 Ti12 (Ca Fe Mn Nb2 O6 Sc Sn Ta2 Ti3)
Multiplicity: 1