Archaeo-Histories on Nostr: Ancient Egyptian Drill Core, specifically Petrie's Core 7, made of pink granite with ...

Ancient Egyptian Drill Core, specifically Petrie's Core 7, made of pink granite with museum catalog number UC.16036. It was discovered by William Flinders Petrie near Great Pyramid of Giza in 1881. 

Granite is far harder than copper, material traditionally cited for Egyptian tools, making precision of the core difficult to explain. The find suggests either highly refined stone-working techniques or methods we still don’t fully understand.

Petrie Museum of Egyptian Archaeology, London