Why Do Pyramid Blocks Merge With the Bedrock? | Geopolymer Explained When you look closely at ancient structures in Egypt, it often appears as if massive stone blocks are literally fused to the natural bedrock. This strange phenomenon may point to an ancient construction technique far beyond what classical Egyptology describes. If geopolymer stone is poured directly into a natural rock niche, the chemical boundaries merge as the material hardens. Over centuries, rainwater dissolves minerals from