Mons Porphyrites Quarries Mons Porphyrites quarries is located in Gebel Abu Dokhan( smoky mountain ) in the Egyptian eastern desert ,40 km west of the Red Sea and approximately 170 km northeast of  Qena. Mons Porphyrites or Porphyrites quarries were used from the Tiberian period until the early fifth century AD. For very long time, […]