To identify fluorapatite in XRD analysis, compare the observed peaks in the diffraction pattern to standard patterns for fluorapatite. The relationship between 2θ angles and energy can be referenced in scientific literature, which provides expected peak positions for various minerals. It's essential to have a standard diffraction pattern for accurate identification. If the sample shows peaks matching those of fluorapatite, it can be confirmed as present. Utilizing these methods will enhance the accuracy of the analysis.