Hand Testing Gold
The acid test for gold
Although we service many industries, the majority of our business at Manhattan Gold & Silver comes from walk-in customers. As many of our customers own businesses of their own, we understand that time is money. That’s why we pride ourselves on our fast testing methods to determine the value of your precious metals.
The acid test for gold has been used by jewelers, refiners, and other precious metal professionals for centuries. We use this acid testing method for small pieces or lots of precious metal. To start, all items are inspected carefully by our highly trained and experienced staff. We then scratch a piece of the metal against a basalt stone. This leaves a mark on the stone. By applying certain strengths of nitric acid to this mark and measuring the resulting reaction, we can accurately measure the purity of the precious metal and give you a fair payout right away.
Larger lots of precious metals may need to be melted then X-ray assayed or fire assayed. Both are accurate methods of gold testing and still have the quick turnaround time MGS is known for.
If you bring gold items for acid testing to our Diamond District location, we can pay you most likely the highest found rate for your gold, as determined by the latest London price fix and/or market conditions.
Questions? Don’t hesitate to contact us about gold testing or other refining questions.