Com. suspension of Ag nano particles was studied for presence of org. stabilizers, phase compn., nanoparticle size distribution as well as IR spectral and thermal properties. The ay. size of Ag particles was 75.5 nm x 38.8 nm. The suspension was mixed with natural hydroxyapatite (HAp) made of pork bones to resp. Ag/HAp composites (Ag:HAp ratio 1:1 to 1:10. The composite material was tested for the structure by X-ray diffraction anal. The presence of nano Ag particles was confirmed.