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In this study, the natural clay deposits from central Cambodia (Kampong Chhnang and Kandal) were collected and investigated for their physical, chemical, mineralogical, thermal, and firing characteristics to evaluate their potential suitability as raw materials in various ceramic applications. Physical properties were identified by particle size distribution, specific surface area, consistency limits, total organic content, and cation exchange capacity (CEC). Chemical, mineralogical, and thermal properties were carried out by XRF, XRD, and TG/DTA techniques, respectively. To evaluate their ceramic behaviours, the samples were fired at temperatures from 800 to 1200 °C. Firing characteristics were determined by bulk density, linear firing shrinkage, water absorption, and flexural strength. A Malaysian clay (BBC), which is a common raw material in ceramic tiles manufacturing, was used as reference sample. Results show …