In the present work, some rocks were collected from Makkah, Saudi Arabia. Thermoluminescence technique was utilized to investigate the possibility of using the samples as an accidental radiation dosimeter. After γ-ray irradiation by Co-60 source, Makkah rocks sample revealed a TL-peak at 155°C. The peak position is decreased with the increase of the γ-dose. The chemical analysis of Makkah rocks was conducted using the XRF technique. The natural fading, the effect of temperature on the ability of the samples to be stored, the TL-signal and the optimum grain size of the samples were studied. The activation energy was calculated using the peak shape method. The TL-signal exhibits a linear response through the gamma dose range 0.01-1k Gy. In this range of exposure, the sample under study can be considered as an accidental dosimeter.