All the examples are real minerals, and the tranformations are between non-equivalent but similar structures, not just changes of axes. There are files transforming each structure in the set to the other structure(s).
The transformations type is Full unit cells.
Marcasite(mc)-arsenopyrite(as). In addition to the substitution of As for one of the sulfurs in S2 groups, the cell and symmetry are different.
Columbite(co)-huebnerite(hb)-wodginite(wo). These oxides have the same basic structure, differing in the pattern of cation substitution.
Cubic boracite(boc)-orthorhombic boracite(boo). This is a high-low temperature transition. The low-temperature orthorhombic form is ferroelectric and can take several orientations with respect to the cubic high-temperature form. Some atomic displacements are quite large.