#187
P-6m2
Example – KCaFCO3
KCaFCO3 from x-ray powder data
Chen, X.-L.; He, M.; Xu, Y.-P.; Li, H.-Q.; Tu, Q.-Y.
Acta Crystallographica, Section E. Structure Reports Online (2004) 60, pi50-pi51
KO6 trigonal prisms (purple)
CaO6F2 hexagonal dipyramids
CO3 trigonal planer units (black)