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,