  Ba2MnTeO6 was first characterised using X-ray diffraction and reported to
show a small distortion1 from the idealised cubic perovskite which displays
face-centred cubic arrangement of Mn2+. A recent report has asserted that this
leads to a layered configuration of Mn2+ that serves as an example of a
triangular lattice, i.e. a 2D structure containing discreet layers.2 Here we
show how neutron scattering gives great confidence in establishing the crystal
structure being an undistorted cubic phase and how this can be mis-assigned as
a triangular layered structure. This has profound implications for the
understanding of the magnetic properties of the system.
