Citation: Tarantino S C; Zema M; Pistorino M; Domeneghetti M C (2003). High-temperature X-ray investigation of natural columbites Note: sample KRA5 at T = 20 C Locality: Kragero, Norway. Physics and Chemistry of Minerals, 30, pp. 590-598.
Formula: Ca0.009 Fe0.138 Mn0.792 Nb1.794 O6 Sc0.002 Sn0.003 Ta0.166 Ti0.077 W0.001
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Ca8 Fe4 Mn4 Nb8 O24 Sc8 Sn8 Ta8 Ti4 W8 (Ca2 Fe Mn Nb2 O6 Sc2 Sn2 Ta2 Ti W2)
Multiplicity: 1