Citation: Wechsler, B. A. (1977). Cation distribution and high-temperature crystal chemistry of armalcolite sample Arm-E, T = 24 deg C, before annealing. American Mineralogist, 62, pp. 913-920.
Formula: Fe0.5 Mg0.5 O5 Ti1.999
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Fe12 Mg12 O20 Ti12 (Fe3 Mg3 O5 Ti3)
Multiplicity: 1
Coordination sequences: