Video Argues Osireion Blocks Were Cast, but Evidence Is Disputed

May 03, 2025EgyptTheoryShare

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Key facts

• The video argues that screeding-like marks on the Osireion walls indicate its large blocks were cast rather than carved.
• Screeding is a technique for levelling workable cementitious material. Modern cast stone can be moulded and screeded, but that does not establish how the Osireion was built.
• The video describes flatter upper walls and bulging lower blocks as unfinished casting. That interpretation is disputed, and differences in construction, finishing or weathering offer other explanations.
• The video also cites similar marks on granite casing at the Menkaure pyramid. The available sources do not establish that these marks demonstrate casting.
• Oversized blocks, sharp edges, tight seams, polygonal forms, knobs and mortise-and-tenon joints are not proof of casting. Joints can be cut in stone, so their complexity is not diagnostic of a cast material.
• The Osireion is stone-lined, with a central hall built from very large blocks, a limestone interior and sandstone facing. The casting and geopolymer hypotheses remain disputed.

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