Qualitative soil phase analysis is a non-trivial endeavor that is important to observe the main soil forming compounds, complex formation mechanism between different elements and to find toxic compounds in the soil. However, performing X-ray diffrac- tion (XRD) with soil samples is not so simple because of many complexities like variable chemical and structural compositions of soil minerals, including inter-stratification with swelling inter- layers and various defects that may cause large differences in the XRD reflection intensities between different species of the same mineral. Furthermore, the thickness of diffracting domains, particle size, particle-size distribution, and the sample weight or thickness in the holder, sample preparation, XRD instrument alignment, and data collection procedures may all contribute significantly to the problem Above all, the complexes of minor elements yield broad low-intensity XRD peaks, and these peaks often overlap withhigh-intensity peaks from silica, thereby making identification and quantitative determination difficult. Some of the minerals like calcite and dolomite do not cause problems lists some of the interferences of quartz with other minerals. The XRD peaks of most of the minerals including kaolinite, maghemite, muscovite, sillimanite etc., which are among the main soil forming components, overlap with the strongest peak and other peaks of quartz.