I have been able to produce phosphate apatite from a very complex wastewater source without the addition of chemicals. After treatment, the elemental analysis using both SEM-EDX and TEM showed that the mineral obtained has a Ca:P ratio up to 1.44, carbon was also detected but no metals were found. After reading some of the literature I concluded that this material is most likely to be carbonated calcium-deficient HAP. Further characterization using FTIR is currently needed alongside with calcination treatment. Biomaterials is really not my area so I am open to advice on how to best analyse and characterize this mineral. What should I be looking at to see if this material has similar properties to that of standard HAP? Is the FTIR the best way forward in this case?