Comparative X-Ray Diffraction Analysis of Quartz Samples for Crystallographic and Phase Composition Variations

This research compares two quartz rock samples using X-ray powder diffraction to evaluate differences in their crystal structure and mineral composition. Each powdered sample was analyzed using a Philips X?Pert Pro diffractometer. The analysis revealed that Sample 1 consists entirely of quartz with a hexagonal crystal structure and space group P3?21, while Sample 2 contains quartz (21.9%), anorthite (53.9%), and muscovite (24.2%), crystallizing in mixed hexagonal and anorthic systems. Minor variations in lattice parameters were observed, attributed to secondary mineral inclusions in Sample 2. The study confirms the effectiveness of XRD in identifying phase composition and crystallographic features of quartz samples. The aim of this study is to compare the crystallographic and mineralogical compositions of two quartz rock samples using X-ray powder diffraction.