Eyes of Atlas

Mineral fingerprinting supports a Gebel el-Ahmar quarry source for the colossi stone

Claim about Colossi of Memnon · Stance: supporting

Geoarchaeological analyses have been used to argue the colossi’s siliceous sandstone (‘quartzite’) matches material from Gebel el-Ahmar (near Cairo), helping resolve earlier quarry-source debates.

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Evidence for and against

  • Debate note: Quarry source debates (Gebel el-Ahmar vs other proposals)

Other claims about Colossi of Memnon