The Prophet Muhammad, before becoming a Prophet, would break his tribe Quraysh’s tradition by standing at Arafat with the other Arabs, much to the shock of his fellow Qurayshite Jubair bin Mut`im who highlighted that he was a part of the Hums and questioning what business he had there.
[7] A 2012 study classified Mount Arafat as a granodiorite rock which mainly consists of feldspar, quartz and muscovite, among other minerals, using petrographic, fission track dating and γ-spectrometric (HPGe) techniques in order to study the geology, thermal history and the radiological hazards due to the presence of primordial radionuclides.
[1] The study yielded fission track age of 9.13 ± 1.05 Ma of the Mount Arafat granodiorite.
Measured radioactivity concentrations due to 226Ra, 232Th and 40K were found to not pose any radiological health hazard to the general public.
It is an important place in Islam because, during the Hajj, pilgrims spend the afternoon there on the ninth day of Dhu al-Hijjah.