Would you like to know whether your silver bar is genuine? Verifying the authenticity of silver bars is essential, as counterfeit bars do exist. A genuine silver bar has a specific weight, size, and tone, and reacts in a predictable way to various tests.

Reliable methods to test silver

Below are five reliable methods to verify the authenticity of silver bars:

1. Weighing the silver bar

Use a precise, calibrated scale. The weight of the bar should exactly match the official specifications. Any deviation may indicate another metal or a counterfeit. Note that kitchen scales are not accurate enough—always use a certified precision scale for this test.

2. Magnet test

Silver is not magnetic. Slowly slide a magnet over the surface of the bar: a real silver bar will cause the magnet to move slowly due to magnetic resistance. If the magnet sticks or slides too quickly, the bar is likely not pure silver.

3. Density (specific gravity) test

Check the density using the formula P = M / V, where P is density, M mass (in grams), and V volume (in cm³). Pure silver has a specific gravity of 10.49 g/cm³. Cheaper metals such as copper (8.9), tin (7.3), or zinc (7.1) are less dense. A counterfeit bar will often feel slightly lighter or larger at the same weight.

4. Sound test

Gently tap the bar with a coin or a metal rod. Genuine silver bars produce a clear, ringing tone with a sustained resonance. A dull or short sound can indicate a bar made of another metal. Note: this test is less reliable for large bars.

5. Ice cube and heat test

Place an ice cube on the bar. Real silver conducts heat exceptionally well, causing the ice to melt rapidly. When you hold a genuine silver bar in your hand, it will also warm up quickly, while counterfeits remain cool. Note: this test may cause slight surface oxidation.

How Holland Gold verifies silver bar authenticity

At Holland Gold, we only sell LBMA-certified silver bars from reputable refiners, containing at least 99.9% pure silver. Each bar clearly shows:

• the refiner’s name or logo
• the weight
• the silver fineness
• and, for larger bars, a unique serial number

Unlike gold bars, silver bars do not come with separate certificates of authenticity. We carefully test all silver bars with professional equipment to guarantee their authenticity before resale.

Testing silver at Holland Gold

If you want to be certain your silver is genuine, Holland Gold can verify your coins or bars for authenticity. When you collect your order, we can perform a professional test together using our advanced testing instruments—ensuring your investment is safe and authentic.

Learn more about selling silver and selling silver bars.

Also read: How to test silver coins for authenticity.