How To Check Gold Bar Purity at Home
Checking a gold bar’s purity at home can give you a rough idea of its quality before having it assessed professionally. While not as precise as lab tests, several home methods can help confirm that a bar is likely real gold and matches its stamped information.
To get started:
- Look for official markings – Most authentic bars include weight, purity, brand, and serial numbers.
- Use a magnet – Gold is non-magnetic. If the bar is attracted to a magnet, it's likely fake or alloyed.
- Weigh the bar accurately – Use a digital scale. Compare actual weight to what’s stamped.
- Use nitric acid test kits – These kits test how the metal reacts to acid. Always follow safety instructions.
- Check packaging and documentation – Assay cards or sealed tamper-proof packaging add credibility.
Each test gives you clues, but none offer full confirmation. If there’s doubt about authenticity or the stamp has been tampered with, a professional assessment is still recommended.
A gold bar dealer Lakewood buyers trust can perform a thorough test using advanced equipment like XRF scanners or density testing methods. Starting with basic checks at home helps you screen bars and avoid wasting time on obvious fakes.