Anonymous ID: 6f9b25 Aug. 28, 2018, 9:01 p.m. No.2778630   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun

>>2778426

Quote "The methods of extracting the metal were simple but effective. The earliest method used was probably extracting gold from auriferous sand, which was known in antiquity as nub-en-mu or โ€™gold of the riverโ€™. Quantities of auriferous sand would be placed into a sack made from an animal fleece, with the woolly side facing inward. Water would then be poured into the bag and vigorously shaken around by two men. This would separate the heavier metal from the dirt and grit and when the water was drained out, it would take the dirt with it leaving the gold dust adhering to the fleece. "

 

https://atensequence.blogspot.com/2013/08/the-importance-of-gold-to-ancient.html

 

Not sure about this blog but the quote seems very relevant.

The capstones were called Pyrmidia and coated in a substance called electrum. Electrum was a combination of gold, silver, and copper. Looked like gold leaf. The main part of the capstone was said to be made of marble or granite.

https://en.wikipedia.org/wiki/Pyramidion