Northwestern Now/Megan Fellman/5-9-2019
“Now a team of Northwestern University materials scientists have experimentally replicated the medieval gold purification method outlined by Nixon and Rehren in a 2014 paper using the same material resources and found the process works incredibly well. The unusual method involves heating a mixture of gold, sand and glass to high temperatures and separating out the gold.”
USAGOLD note: And we suspect considerably less expensive than some of the methods used today. . . .
