The local structure around hydrogen atoms, phosphate ions and carbonate ions in nano-crystalline nonstoichiometric hydroxy-carbonate apatite was investigated in this study. The use of C enriched precursors allowed to perform 1D and 2D CP MAS HETCOR (HETeronuclear CORrelation) experiments with 13C as a target spin. 2D triple resonance experiments involving the 1H/13C/31P spins were also performed. All these experiments led to the partial editing of the corresponding projection spectra and revealed fine structural details for the corresponding material. At least four 13C peaks, corresponding to carbonate ions in A-sites (OH) and B-sites (PO43-) were evidenced.