For FeTa 2 O 6 (Table ), all the local atomic coordinates are observed. The distorted trigonal planar geometry and the distorted T shaped geometry have similar geometries but CLICS successfully attributes them. Note that the octahedra are connected with sharing their edges, and the edge-sharing octahedral chains are alternately tilted and connected at the vertices of the octahedra. The connections are better visualized along the chains (the right top of Figure ).