preliminary studies have shown that the related bromoapatite phase, Ba6Sr4(PO4)5(MnO4)Br2 can also be prepared; The XRD pattern of this phase indicates the formation of an apatite structure similar to the Ba6Sr4(PO4)5(MnO4)Cl2 system (figure ). The colour of this pigment (figure ) was a slightly paler blue with a hint of turquoise, hence the colour coordinates show increased amounts of green and lesser amounts of blue contributing to the overall colour seen (a* = -11.93, b* = -37.86).