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 ...

Put a finger down if you’ve come across a ‘Rice Purity Test’ video on TikTok. Purity tests first gained popularity in the 1980s as a way to test the taker’s innocence, and the Rice purity test is one ...

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 ...