Old cracks in the granite at the Unfinished Obelisk quarry at Aswan. Such cracks were very probably induced by fire in the New Kingdom to ease the extraction of granite. Photo: Per Storemyr
Old cracks in the granite at the Unfinished Obelisk quarry at Aswan. Such cracks were very probably induced by fire in the New Kingdom to ease the extraction of granite. Photo: Per Storemyr
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Per Storemyr Geoarchaeology & Conservation 
