gold Archives

INFOGRAPHIC: 8 Reasons Jewelers Should NOT Use Acid to Test Jewe...

In our last article we saw how one gold dealer tests, weigh... by Jonathan Margalit, PhD / 12.17.2013

Here’s a short video demonstration that shows how one gold... by Jonathan Margalit, PhD / 12.12.2013

[Administrative Note: Because this is usually the busiest se... by Jonathan Margalit, PhD / 12.05.2013

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