Well how did they get the massive amount of gold?
Well if you are extracting the small amounts of gold while you are mining. And is easily done.
So the toxic environment of the mines and the acids really destroy any tools. Yep that's right what ever you take to mine with degrades quickly much quicker then if you were surface mining.
Let alone forgetting a tool for the day or weekend? You are going to come back to corrosion.
Leaching process with iodine.
And what about more ways?
Common household chemicals can also be used.
What about electricity? Actually gold is highly conductive...
Yep.
And actually using all the different techniques. There is so many more methods that we can use like physical separation with gold pans, rocker boxes, sluice boxes, trommels wash plants and of course suction dredging.
So actually it really isn't that difficult to source natural acids from these mines and knowledge of alchemy really starts to make sense as you can purify different kinds of metals with different processes ending up with a massive amount.
Funny thing is King Tut's dagger is made from steel. So weapons made of these materials have been known to be worked however with their high value they would be recycled just like any tools or machinery from these prehistory times.
With massive amount of pressure that was locked up in burials there was a massive amount that was actually financially liquid. Grave robbers have stolen and destroyed so much of human history that we are incapable of understanding how much we have lost.
How is it that these prehistoric people had so much gold? Well if we are talking a geopolymer factory the byproduct is a completely malleable Stone that you can shape into massive megalithic bricks. Adding a little bit of dust you can then stack another one of these megalithic blocks. The malleable material conforms perfectly. If you're able to shape it you can then mold stone work around corners and into corners.
Human beings just have to play some old around the next section which is pretty much the reason why you see horizontal rows of these blocks because as you're pouring one you are forming the next one.