posted on Nov, 16 2018 @ 12:27 AM
I was looking into the possibility of perhaps superheating the granite to more than 300 degrees C, and then pouring water onto it. And I
stumbled on to this fun fact:
Apparently the melting point of wet granite is 950 degrees C at sea level. The melting point of copper is 1084 degrees C.
So, if they could make a fire hot enough to melt copper, it would also be hot enough to melt wet granite.
If you look at some of the images of the granite casing stones of the pyramid of Menkaure, the texture of some of the unfinished stones looks a lot
like unfinished drywall.
There are other pictures where you see hand holds that were probably going to be smoothed off, like in the 7th pic on this site.
But the ones that look like unfinished drywall are interesting. If they heated it, and then smoothed it with a trowell like you do when making
concrete, that's about how the surface looks (I worked in concrete for a few months and that is similar to what it looked like before getting fully
After that, they would probably let it cool and then polish the surface with diorite "pounders" (Which i doubt they actually "pounded" with, as
opposed to scraping with.)
That would also explain the weird vertical marks on the giant obelisk at Aswan.
If the stone were softer at the time of cutting, then you'd go at it with some kind of scraping tool and get marks like that, just like when a child
tries to smooth out a flat surface on a piece of play dough.
1000 degrees C is also not outside the range of temperatures Ancient Egyptians were known to use when firing pottery.