When it comes to gold, how pure is pure? And how does anybody know? As recent revelations about the Perth Mint have shown, gold buyers and sellers take purity very seriously. Questions have been ...

Bullion dealers and pawn shop owners require appropriate tools to ensure they are providing their customers with pure gold, silver, and other precious metals. Several analytical methods are used to ...

Record bullion prices have not removed the hardest question in gold mining: can the processing circuit turn material on the ...