Preferred orientation of hydroxylapatite crystals in shark teeth enamel

Abstract

In this study, shark teeth enamel was investigated by mineralogycal technique. Hydroxylapatite was included in shark teeth enamel. Shark teeth enamel was observed by polarized microscopy.Shark teeth enamel was analyzed by XRPD method. Shark teeth enamel was examined in detail by polarized FT-IR microscopy. X-ray diffraction pattern was analyzed by using Weisenberg and precession camera. From the result, it was comfirmed that c-axies of hydroxylapatite was preferred oriented to direction of longitudinal enamel prism and direction where it is done to angle of about 30 degrees.