Abstract
White deposits on archaeological vessels excavated at Harappa, Pakistan, were identified by x-ray diffraction analysis as pure gypsum. Because of the evenness and location of the layer it appeared to have been intentionally applied. But since we were aware that the site has an extreme salt problem there was a possibility that the layer was a post-depositional accretion. Through the comparison ofx-ray diffraction (XRD) peak intensities and the crystal morphology using scanning electron microscopy (SEM) it was determined that natural and intentionally calcined/hydratedgypsum could be differentiated. This study should help archaeologists and conservators distinguish burial deposits from intentionally applied gypsum on archaeological material.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
