Before buying or after receiving a gold bar, it's smart to verify its purity—especially when purchasing from private sellers. While lab-grade testing is ideal, there are practical steps Detroit buyers can take at home to perform basic checks.

Here’s how to get started:

• Use a magnet – Real gold is non-magnetic. If it reacts to a magnet, it's not pure.
• Measure size and weight – Compare your bar’s dimensions and weight to official specs from the mint.
• Conduct a visual inspection – Look for mint marks, serial numbers, and consistent engraving.
• Try a nitric acid test – Available in test kits, this can help verify whether the surface is truly gold.
• Use a digital tester – Electronic gold testers offer a quick read on surface purity.

These methods can offer a starting point for assessing quality before involving professional evaluation. For significant purchases, expert confirmation is still highly recommended.

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