Lloyd,
Here is a video of how a vase was carved out of marble breccia using primitive materials including copper saws and drills.
https://www.youtube.com/watch?v=dC3Z_DBnCp8&t=0s
Did they succeed? Yes they did. But how long did it take?
- Material: breccia marble from the Narvsky open pit in the Krasnoyarsk Territory
- Ingoing size: 200x200x200mm
- Finished size: 80x135mm
- Tool materials: wood, sandstone, corundum (grindstone + grinding agent), hemp string, alabaster, quartz.
- Self-made tools: a grinding and drilling machine, a bow drill, a chambering tool (a grindstone on a wooden handle), a copper saw, copper drills of various diameters.
- Total work time: about 6 months, 6 to 8 hours a day, excepting 2 days off a week. At least 2 months of this time period were spent on making and testing the tools.
Six months of working 6 to 8 hours/day, 5 days per week! to make a single vase. Let's figure 6 months equals 26 weeks x 5 work days/week = 130 total work days x 6 hours work/day = 780 hours of work. And 130 total work days at 8 hours work/day = 1040 hours of work.
Now tool creation and maintenance took two months, which should be included in the whole work load since the ancient worker would have to do the same. Anyway, for the sake of argument, let us subtract one third of the hours: (780 - 260) and (1040 - 346.7) and we get a range between 520 and 693.3 man hours in order to build a tiny marble vase with copper tools!
So is it possible? Yes it is possible. But if the Egyptians tried to build Pyramids (remember there are 7 major large pyramids and numerous smaller ones) temples, walls, statues, and associated structures at this rate...they might still be working on them today.
Think, if you are potter...how do you earn a living selling marble pottery when you can only make 2 tiny (the finished size 3 inches by 5.3 inches) vases per year? How could the pharaohs afford to pay for constructions at this rate of production? Workers are subject to the same general productivity requirements as today.
With all respect to the people who conducted the experiment they make it clear that they are not saying that this is how the Egyptians worked hard stone, but that they were only demonstrated that it could be done given enough time.
The experiment was not intended to copy the ancient method of stone carving in detail. The idea was to show the possibility of doing such work using simple tools.
And let us not forget Petrie's findings that granite (which is considerably harder than marble) in the unfinished King's Chamber and on basalt blocks outside of the Great Pyramid displayed clear signs of the teeth marks from a saw. That makes all the arguments presented in these videos irrelevant. The choice is simple, either the Egyptians used diamonds or other gems as saw teeth or they had hardened steel saws. The Egyptians did not have diamonds or any gems available until the Ptolemaic period, which leaves the simplest explanation....they had steel saws and drills.
Attached is a photo of a diorite statue of 4th Dynasty Pharaoh Khafre. Diorite is much harder than granite. A close look reveals subtle curves, delicate carving of the eyelids, lips, and other facial features. What kind of tools were used in its making?
Diorite Statue of Khafre.JPG