A Comprehensive Analysis of Various Structural Parameters of the Untreated Calcium Phosphate from Two Moroccan Mining Zones

Abstract

X-ray diffraction (XRD) and Raman spectroscopy analyses were performed on untreated calcium phosphate samples of the two mining zones of Morocco: Benguerir and Khouribga. XRD has been examined for the determination of the structure parameters and their textures. However, a comparative study was conducted between the two types of phosphate to implement the observed structural differences. XRD Results showed that the comparison between the two samples reveals significant differences at the level of the refinement parameters, crystallite size and microstrain but no changes in the crystal system. Raman analysis assignments are given for powdered samples of the organically important compound, calcium phosphate, in the 0–3600 cm–1 range. The wavenumber positions of Raman bands were different and changed between the two different samples. The results may be of significance in understanding the relationship between XRD analysis and the parameters of material structure.