The presence of a layer on Egyptian stonework also
The advanced stonework in Egypt seems to have the same even and thin layer on the surface as one can find in Peru! Holger Isenberg took pictures there during a tour and is someone who knows how to look. See the pictures and compare with my pictures of the last blogpost of Ollantaytambo and my pictures of vitrified stones here.
This picture is of the Osireion temple is quite self explaining; there is the shiny layer and the layer is chipping off. I have seen more examples on video and pictures of these same walls; it is all over, only it depends a bit on how the light falls on the wall if one sees it on film or picture or not. According to most geologists it would be all because of salt weathering. Difficult to believe; something else must have happened that especially this stonework shows the vitrification and the layers chipping off. Below a few more pictures of stoneblocks that are close to the great pyramid and show a layer with a different color than the rest of the block.