Every ounce of mined gold leaves behind roughly a tonne of processed rock and the water that carried it. What happens to that material after the last shift is the part of the industry with the longest timeline and the least coverage.
Counterfeiting gold is not about making something that looks right. It is about defeating a specific test, and the industry's defences are an escalating conversation between forgers and instruments.
Roughly a quarter of the world's annual gold supply has been gold before. It arrives as broken chains, single earrings and dental crowns, and it moves through a chain of intermediaries that most sellers never see past the first counter.
Industrial demand is the quietest third of the gold market: a few tenths of a gram per handset, multiplied by billions of devices, chosen not for prestige but because nothing else conducts as reliably for as long.