As far back as the last century, people learned how to fake silverware, and checking the authenticity of silver was a challenge for our grandmothers and great-grandmothers that required ingenuity. Buying products made of this precious metal still carries the risk of acquiring a slick fake. Fortunately, there are many home methods of checking silver that will dispel any doubts about the authenticity of the purchased item. Let’s take a look at safe and simple methods of determining the authenticity of the metal using available means.
Marking silver: why and how to check sterling silver?
The most reliable way to check silver is to use chrompik. This chemical reagent is specifically designed to assess the quality of argentum items and to perform tests. Using chrompik requires special attention and concentration, as it can be dangerous to health if used incorrectly.
Directions for use:
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Preparation:
- Please lay down a waterproof cloth.
- Wear protective gloves and a mask.
- Use a container that is not used for food.
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Sample preparation:
- Make a scratch in an inconspicuous area of the jewelry. If a test stone is available, rub gently on the stone.
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Reagent application:
- Drop 1-2 drops of chrompik on the prepared spot.
- Evaluate the result within 10 minutes.
Using these methods, you can effectively verify the authenticity of sterling silver and avoid the risk of purchasing a fake.
The result will give a reliable assessment of the quality of the item and the grade of the silver based on the color of the stain left by the chemical reaction:
- Bright red color: 99% probability of pure silver (Argentum).
- Marooncolor: 925 sample.
- Light brown stain: sample 875.
- Green color: sample 750, used for silver products.
- Blue or lilac stain: nickel.
- Yellow color: lead or tin.
- Black color: brass.
The error with this method is up to 15%, since modern fakes can interfere with the chemical reaction by adding other chemical elements, obtaining the desired color. Accurate spectral analysis is possible only with laboratory equipment.
Safety requirements when using potassium dichromate (chrompik):
- Conduct the test in a well-ventilated room.
- Avoid inhaling the fumes that result from the reaction.
- Use protective gloves, a mask and a waterproof cloth.
- Keep chrompik away from containers used for food.
- Be careful not to burn mucous membranes.
Following these tips will ensure that you can safely and effectively check the authenticity of silver at home.
Silver is often counterfeited as white gold, which can be difficult to detect with the naked eye. However, there are techniques that can help you identify the real metal:
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Checking the quality mark: Note the presence of the hallmark, which indicates the grade of the metal. Sterling silver will have a corresponding stamp.
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Presence of inserts: Precious minerals such as diamonds, sapphires, emeralds and rubies are more often set in gold than in silver. Jewelry containing such natural stones may suggest that it is white gold rather than silver.
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Sound test: master jewelers evaluate the sound of metal when it hits wood. Gold makes a sonorous sound, while silver sounds more deafening.
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Test on a clean sheet of paper: Silver scratches easily on paper, leaving a mark. Gold does not leave a mark. Note, however, that if the silver is rhodium-plated, this method will not be effective.
These methods can help you identify whether your jewelry is made of silver or white gold, allowing you to make more informed purchases and avoid scams.
The five most popular silver fakes.
There are five most popular silver fakes in the jewelry world. They are very similar to silver, and may even surpass it in appearance and luster. Here’s how to tell if an item is made of silver or not, using different methods:
1. Palladium
- Description: Palladium is a more expensive metal than silver and difficult to identify.
- Torch test: Palladium does not respond to heating with a torch, while silver melts easily.
- Chemical test: Use a mixture of 10% potassium iodide and Tsar’s vodka. Palladium turns a brownish-red color, while silver remains unchanged.
2. Melchior
- Description: Melchior is an alloy of copper, nickel and zinc, often faked as silver during the Soviet era.
- Magnetic test: Melchior is slightly magnetic, while silver is not.
- Scratch test: Melchior is difficult to scratch with a needle, while silver is a soft metal and easily injured with sharp objects.
- Chemical test: use a lapis pencil and nitric acid. Silver reacts, giving a dark gray and green color.
3. Aluminum
- Description: Aluminum was often counterfeited as silver in the past.
- Solder test: Aluminum is not compatible with solder, so products made from it have a monolithic appearance. Inserts are attached with glue, not valves or mechanical connections.
4. Stainless steel
- Description: Stainless steel can be mistaken for silver if it is not magnetic.
- Magnetic test: Steel is magnetic even when exposed to an ordinary magnet.
- Alcohol test: Use technical methyl alcohol and a paper napkin. Stainless steel stains the napkin a dark color.
5. Tin
- Description: Tin is commonly counterfeited as silver and difficult to distinguish visually.
- Surface test: Silver has a peculiar uneven surface with bumps and indentations, while tin has a perfectly smooth appearance.
- Sulfur ointment test: Use sulfur ointment, which is available at pharmacies. Silver will leave a stain that is difficult to remove, while tin will not react.
General instructions:
- Quality mark: Always check for the presence of a quality mark, which indicates the grade of the metal.
- Presence of insets: Precious minerals are more often set in gold than in silver, so watch out for jewelry with such stones.
- Sound test: Gold makes an audible sound when struck against wood, while silver sounds more deafening.
- Paper test: Silver scratches easily onpaper, leaving a mark, while gold does not leave a mark. This method does not work if the silver is rhodium-plated.
Using these methods will help you recognize the authenticity of silver and avoid buying fakes.
How to test silver at home.
The first method of checking the authenticity of silver is to use a magnet. Silver is non-magnetic, so it should not react to a magnet. However, fraudsters use alloys containing chemical elements that are also non-magnetic, making it difficult to detect fakes using this method. If you don’t have a magnet on hand, there are other methods for testing silver at home:
One simple and effective method is to test silver with iodine. On contact with silver, a drop of iodine leaves a dark trace, while counterfeits react by forming whitish flakes, a light coating or green foam.
Silver has a high thermal conductivity. When immersed in warm water, it heats up quickly and retains heat for a long time after cooling.
A chalk test can be used for unbronzed silver items. Calcium carbonate reacts with silver, leaving a dark trace.
The vinegar test method involves placing the sample in a 9% vinegar solution. Real silver will not react, while counterfeits may darken or become covered with a whitish tarnish.
Counterfeit silver is often created by electroplating a steel product with a thin layer of silver. Such a coating can fool magnets and withstand other testing methods. To evaluate the metal, a scratch or cut can be made. After several months of use, the coating can wear off, exposing the inner metal. At joints and soldering points, the coating is not uniform, and the metal inside begins to rust.
The best way to protect yourself from fakes is to buy jewelry from a trusted jewelry company. All products should have a manufacturer’s tag with a sample designation and a state-level seal of authenticity, ensuring that you are buying a quality product.