Silver’s diamagnetism makes the magnetic-slide test very effective at spotting fakes. Magnets are some of the most versatile objects tthat most of us will use in our every day lives, but most people would never think to use them for testing the authenticity of silver and gold objects. Conduct an ice test with a genuine silver coin, the suspected fake, and several known fakes (or non-silver coins). This produces an effect called the Eddy Current Brake. Of course, not all eyes are created (nor cultivated and maintained) equally: An experienced jeweler will be able to spot a fake much more reliably than you, and even experienced jewelers can be tricked. 19 sold. The fakes fall down the slide wit… Ideally, you could use a Neodymium disc magnet or a similar bar magnet to carry out these tests. This is an easy test that can give you a good idea on whether your item is real silver or not. After failing the magnet test, you might disregard the contents of real gold in something that is combined with iron. Welcome to Magnetpartner. Bleach can also be used to check the authenticity of the silver metal. Copper-Zinc do not stick to a magnet. Notice how it moves away from the magnetic field. Howto Test Fake Gold and silver Specific Gravity, Using an Ultrasonic Thickness Gauge to Test a Real and Fake 100oz Engelhard Silver Bar. If a supposedly silver coin sticks to a magnet, you can guarantee that it’s a fake. If the ice on the suspect coin melts much slower than the ice on the silver coin, you’ll know you have a fake on your hands. If you’re not convinced of the coin’s authenticity at this point, consider using the bleach or acid tests — or investing in higher-grade (and more expensive) equipment. If you place a strong, rare-earth magnet called a Neodymium magnet on a silver coin or bar, it should not easily stick to it. Visual tests can easily spot egregious fakes, especially with the aid of an authentic coin for comparison’s sake. Have you tested the purity of your gold and silver coins? Family owned and operated. Magnet test: No. If the area turns into creamy white, the silver is pure or sterling. With the use of a single magnet and a few minutes of your time, you will be able to walk away knowing whether your gold is real or fake. I took a silver tea set in, they gave me top $ for it even though it was just to be melted down (now a days nobody wants a sterling silver tea… However, when weighting, one weighed 26.72 grams and the other weighed 26.39 grams. Silver is the most heat-conductive metal in existence, so ice melts very quickly whenever it comes into contact with it. There is also the magnet slide test. Filmbyen 14A, DK-2650 Hvidovre
Due to the fact that real gold and silver are not magnetic materials, the reaction to a magnetic field would be a clear giveaway that it was mixed with some other kind of metal. In conclusion, the magnet test method can be a convenient way to rule out an obviously fake piece of jewelry, but it should not be your only way of determining the authenticity of one of these materials due to the misconceptions that can arise from the results. 1 ringgit. If you are doing a DIY home improvement project, you can use any type of magnet you have on hand to locate wall studs before drilling. I use a small iridium magnet constantly as a rough first test of silver coins I buy. Silver makes a really lovely bell-like ringing sound when it is … Observe the way that the magnet slides down the bar. The easiest test for counterfeit gold and silver is the magnet test. Once you have gathered all of your materials together and placed them onto a clean workspace, you should begin by testing your magnet with other metallic objects that you know will stick. For person-to-person transactions, some of the tests are appropriate, but many are not. How To Test Silver With a Magnet What You Will Need: Small magnet ; The silver in question ; How To Test Silver With a Magnet: Gather your materials together on a flat workspace ; Begin by placing the magnet on top of the silver coin or bar ; Observe the behavior of the magnet ; Perform an additional magnet slide test (for silver bars) This most basic of tests is surprisingly effective: Simply drop a (non-numismatic) silver coin that you know to be real on a table and listen for the distinctive “ping” sound — this is very difficult to fake. The acid test requires an acid testing kit. Link: https://www.youtube.com/watch?v=WaYh3SlRK0w. Simple weight can be determined using any scale with accuracy to at least 0.1 grams (scales with accuracy to two or three decimal places are preferable). Examine the suspected fake with a jeweler’s loupe or magnifying glass, paying especially close attention to its reeds (or lack thereof). Weigh the coin using a scale accurate up to at least 0.1 grams — 0.01- or 0.001- gram accuracy is preferred. Silver isn’t noticeably magnetic. With your hand, move the magnet close to the surface of the gold until it is almost touching. While it is true that the magnet test can be a helpful way to quickly eliminate a fake piece of jewelry in the event that it sticks, there are a few limitations to this theory. The fakes fall down the slide with no resistance, while the real items slide down much more slowly. Some other metals react in a similar manner as silver with a rare earth magnet. The ping test doesn’t guarantee you’ll spot every fake silver coin, but it should be the first test to which you subject any suspect coins. The entire test will consist of placing the gold that is in question on the surface in front of you and taking the magnet into your hand. The magnetic slide detects fake silver through an 'intrinsic property' known as diamagnetism. Make sure the suspected fake isn’t magnetic — and if you have a magnetic slide, subject the suspected fake to the magnetic-slide test. Silver is of course not magnetic but is dimagnetic. The silver test method. To perform an additional test, which works best for bars of silver over any other form, you can place the magnet on top of the silver bar, while you are holding it in mid-air at an angle of 45 degrees. $25.00. So, I did some very detailed internet research to find out if gold and silver can be tested with a magnet for authenticity, and you won’t believe the results that I came up with. But no matter your budget, you should find at least some of the sixteen tests described below useful. Thus, visual tests can eliminate fakes but they cannot guarantee authenticity. It is not. Magnets are actually used for an activity called magnet fishing, where a large magnet on a rope is thrown into water to fish out magnetic objects. Keep this in mind — and keep an authentic silver coin on hand for side-by-side tests. For these, nothing beats a fire assay — but this ultimately destructive test isn’t very practical. I conduct a test comparing copper to silver. Silver plated copper also has some diamagnetic properties and can be confused for silver with this test. In the video linked below, a man has constructed a slide made out of magnets, which he uses to slide down fake and real silver items. For example, if someone is trying to sell silver jewelry or coins it’s not a … The tests that we will be going over today involving magnets, gold, and silver, will be based on the concept that they are not supposed to stick to the magnet because the real elements would not react this way. A jeweler’s loupe is a great tool for visual inspections, but a magnifying glass can suffice in a pinch. in your basket, Both materials not made of magnetic metal, Metallic objects (ie. Silver is not magnetic and should not have much of a recognizable pull from a magnet at all. Knowing that silver isn’t magnetic is useful since it can help you spot fake silver. So long as counterfeiters can produce fakes for less than the cost of authentic silver coins, and so long as man’s nature is what it is, there will always be phony coins on the market. Thermal Conductivity Testing for Silver. or Best Offer. There are several tests to which you can subject your coins. The magnetic slide detects fake silver through an 'intrinsic property' known as diamagnetism. VAT-no. (A ".999" tells that the item is of fine silver--more silver content that sterling, and ".900" means it is made of coin silver--less silver content that sterling.) Keep reading to find out everything you need to know in order to perform these simple tests. What we meant was diamagnetic. Gold, silver, and platinum are not magnetic. Link: https://www.youtube.com/watch?v=jY0bbRx3K64. For instance, a gold watch that is combined with traces of stainless steel will be undetectable in the magnet test, because stainless steel itself will not stick to the magnet. Method II: If you have silver bullions or coins, try the sliding test. The absence of reeds virtually guarantees the coin is a fake, since non-reeded authentics are rare and valuable errors. Just place a drop … The Ring Test. Place the bar over a flat surface and hold it at a 45-degree angle. Interesting thread. Strangely, silver is apparently very very weakly magnetic. Additionally, some products that are made of real gold will be mixed with iron as well, which is a magnetic material. We begin with a .999 fine silver gram sample. These counterfeits are showing up on Ebay and even large bullion dealers. But what about advanced measurement tests? Paper clips, nails), Acquire the materials that you need on a clean workspace, Test your magnet with other metallic objects, Place the gold in question on the surface in front of you, Take the magnet in your hand and move it toward the gold, Observe the reaction that is caused to determine the results, Gather your materials together on a flat workspace, Begin by placing the magnet on top of the silver coin or bar, Perform an additional magnet slide test (for silver bars), Place magnet on top of the silver bar at a 45 degree angle, Observe the way the magnet slides down the bar, Silver/gold mixed with stainless steel (non-magnetic), Some real gold is mixed with iron on occasion. Apply a few drops of nitric acid. See the video of the latter linked below: Link: https://www.youtube.com/watch?v=C1BhZQ3zCEE. A silver coin will stay a certain color (silver-blueish), while fake silver will turn a different color depending on the metal used to counterfeit the coin. Since I have been anticipating a jewelry purchase recently, I wanted to make sure I was educated on how to tell real metals from the fakes. There are two more advanced measurement tests to consider: XRF analyzers can cost close to $2,000 (or more), while the Sigma Metalytics Precious Metals Verifier starts at $699. How To Do a Magnet Test. $6.99 on … Now slide the magnet over the slanting surface. If the two materials stick, the silver is not real and is mixed with other metals. DON'T BUY FAKE SILVER - EASY ACID TEST!!! The last coin meeting I borrowed a magnet for another member and it probably saved me a $100 detecting some fake Libertads. iii. Real silver tarnishes very quickly, which means it turns black when exposed to oxidizing chemicals. So how do you tell if a coin is genuine silver or a fake silver coin? The next time you spot precious metal, put it to the test. If the magnet sticks to the item, its not silver and if the magnet slides off the surface without showing any sign of resistance then it is most likely a fake as well. The result, which is the coin’s specific gravity (i.e., relative density compared to water), should be very close to 10.49 (the specific gravity of pure silver). Hold the coin or bar at a 45 degree angle place the magnet on the top and allow it to slide down the surface of the item. In the event that you need to test the authenticity of silver with a magnet, you will want to use a small yet strong magnet. Of course, it’s far from impossible for sophisticated counterfeiters to get the dimensions and weight of their coins right, so — just as with visual tests — basic measurement tests can catch some but not all fakes. Precious Metals Aren’t Magnetic. my new magnet showed up in the mail today. Other tests are a little riskier for your coins, especially if you are uncertain as to the legitimacy of the coin in questions. Silver has a nice ringing sound when it is tapped. But in my own tests, I was surprised to see how quickly ice melted on top of a cheap-metal challenge coin or even a modern U.S. quarter (with no silver content) — definitely not as fast as the silver coin, but much faster than the metal pan. Can you test silver with a magnet? When you have done this and they are sticking to the magnet, you can go ahead with the test. +45 71 99 36 14, 0
I’ve saved the most serious and accurate tests for last: All three tests are destructive and should not be used with numismatic coins. Additionally, if the magnet slides down very quickly before your eyes, it is also not real. We are passionate about our customer service! This means you can slide small iridium magnets for example down the surface of the silver at 45 degrees and see some 'loitering' effect as it steadily slides off. When it comes to purchasing rare jewelry that is advertised with these materials, it is very easy to fall into the trap of spending money on something that is watered down with less quality elements like iron or cobalt. 1 review of Tacoma Gold And Silver "Great place, honest and very helpful. This test is to be used as a tool along with other methods such as weight and dimension tests. As the author of the video linked above notes, a silver-plated coin with a copper core would likely pass the magnetic slide test. The magnet test only applies to pure sterling silver items, since silver is non-ferrous material, it is non-magnetic, however, sterling silver is often plated with a thin layer of rhodium for enhanced appearance so if your sterling silver jewelry is plated with rhodium, it may not be accurate. Silver’s diamagnetism makes the magnetic-slide testvery effective at spotting fakes. Of course, many fakes will pass the simple magnetic test — zinc, for instance, is non-magnetic — but silver isn’t non-magnetic, it’s diamagnetic: This means it is repelled by magnetic fields. So weakly magnetic that even a powerful neodymium magnet can't approach picking it up. The bleach test is very simple: You just expose your coin to a drop of bleach (i.e., Clorox). It’s easy for counterfeiters to pass some tests at the expense of others — but it’s very difficult to pass several of the tests with the same fake coin. You’ll need a $185 ultrasonic thickness gauge to conduct this one, and although it’s highly accurate for thick bars, it doesn’t work as well for coins. CMS MAGNETICS Bar Neodymium Magnet 3" x1/2" x1/4" - Rare Earth Rectangle Magnet for Craftings… All it takes is a neodymium “super magnet” from a hobby store. The Nitric Acid Test is used to check if silver is pure or plated. You can measure the weight, thickness, diameter, and shape of four different coins (including the American Silver Eagle) using a tool called the Fisch. Watch this silver vs. magnet sensitivity test to see how silver and various other precious metals react to strong magnetic fields. Use a Fisch if you have one. The great thing about silver is that it has a certain high-pitched ring to it when struck with … Fake silver or silver-plated items are generally made of other metals. Gold and silver can both be tested with a magnet by determining if each material will be attracted to the magnetic force. To do this test, you want to have a magnet made of neodymium. In fact, only iron, nickel, cobalt, gadolinium, neodymium and samarium are magnetic in our everyday lives. You can also bust apart an old computer hard drive to get one. Note that you’ll need to suspend the silver underwater using a piece of string — in order for the test to work, the silver can’t be touching any part of the water container. In the video linked below, a man has constructed a slide made out of magnets, which he uses to slide down fake and real silver items. Test the purity of gold and silver coins and bars with the Sigma Metalytics advanced precious metal scanning machine to detect fake or counterfeit coins. The following video exhibits a test to see is silver magnetic by using some rare-earth magnets, called neodymium magnets. Magnet test: No. But there is a great youtube video where the presenter slides a powerful little neodymium magnet down the face of a coin and the slower it slides, the more silver … Subject the coin to a silver or gold acid test— beware acid may discolor the surface of the silver or gold coin and thus should be used sparingly and with non-collectible bullion coins or bars. This is a fun test: Take two ice cubes and place them on (1) a silver coin you know to be real, and (2) a coin you suspect may be a fake. Magnet Test Because silver and gold are diamagnetic metals, measuring the magnetic attraction of your bullion and coins will allow you to find out if its composition is pure or if it is a mixed alloy. Use an X-ray spectrometer or audio spectrum analyzer to test the metallic properties of your coins, bars, and other precious metal items. The magnet test is easy to do, anywhere you may be. With the knowledge that most metal objects will be attracted to the magnet and real gold will not contain any of these substances, you will be able to get a concrete idea of what material you are working with. Link: https://www.youtube.com/watch?v=BNQfub7ZIfo. To do so, file a small part of the item in a discreet area where it cannot be seen. Due to increasing demand, we decided to start up Magnetpartner in the spring of 2015, and we are now selling our magnets throughout the EU. Silver is paramagnetic so if you slide the magnet down a piece of silver, then it will go down slowly. Should I be worried? Some tests are simple; others are complicated and require special tools. Both the bleach test and the acid test have difficulty sniffing out silver-plated coins with cheap metal cores. Can you test gold and silver with a magnet? Not Here! Metal: Copper-Zinc Composition: Cu: 84, Zn: 12, Sn: 4.
Metalytics, which involves sending electromagnetic waves through metal to confirm its composition.
Real silver coins have precise dimensions and a consistent weight: Any coin that is too big or too small, too light or too heavy, is obviously a fake. It's not really practical to carry around to coin meetings or shows, It sticks that good. Unscrupulous dealers may attach a sterling clasp to a cheap base metal chain and try to convince buyers that the whole chain is sterling. If it slides slowly, braking in between, the bar is sterling silver. This effect is especially noticeable when you compare how fast ice melts on silver versus how slowly it melts on a metal pan. First of all, the metals that might be mixed into a fake piece of gold or silver might be non-magnetic materials to begin with. Since both metals are not supposed to be magnetic, you will be able to tell if they are fake based on the way they react to the magnet. Magnetic Silver Slide - Test Fake & Counterfeit Silver Coins - Made in the USA. Source: Op news. Edit: In the video we said silver is paramagnetic. You want to use a strong magnet when conducting any magnet test. 1. But not all counterfeit coins get attached to a magnet as there are many counterfeit coins made from copper with a thin silver layer pretending to be a silver coin. If it is a coin, you can flick it into the … Silver and gold are non-magnetic precious metals, so if you are able to stick a magnet to your coin that is a dead giveaway that you have a fake American Silver Eagle in your hand. Ring Test Try the ring test with any coin. Neodymium Magnet Test Coin Slide - Fake Silver Coins & Bars Tester ... or Best Offer. With laser-cut dies and correct weight and sizes, it is now near impossible to identify fake silver coins from the real ones. DK35840710, firstname.lastname@example.org
Except for 50 sen fake coins, fake coins that stick to a magnet are more valuable then the normal coin. $49.00. Silver is not magnetic. Silver is one of the best conductors of thermal energy found … Once you have gathered the needed materials and proceeded to your workspace, you can begin by placing the magnet on top of the silver that is in question, whether it is a coin or a bar. It should be noted that copper and lead are also diamagnetic (although their diamagnetism isn’t as strong as silver’s). Magnet attraction: No. Marty Magnetpartner.com is a part of Magnetz og Magnordic ApS. Ping Test. Some of them are potentially (or definitely) destructive, so they shouldn’t be used with collectible coins. Start by obtaining a magnet and carefully hovering it over the bullion. 4. While the comparatively low price of the metal makes silver coins less susceptible to counterfeiting than gold, fraudsters can still make a bundle by passing off fake silver coins, minted with inexpensive base metals, onto unsuspecting buyers. See the video linked below: Link: https://www.youtube.com/watch?v=_T8fdshyEek. https://www.youtube.com/watch?v=GajK6Vrh2Rs, https://www.youtube.com/watch?v=WaYh3SlRK0w, https://www.youtube.com/watch?v=8gLB2uMAMYM, copper and lead are also diamagnetic (although their diamagnetism isn’t as strong as silver’s), https://www.youtube.com/watch?v=xYdSEAm-7uI, https://www.youtube.com/watch?v=_T8fdshyEek, Sigma Metalytics Precious Metals Verifier starts at $699, https://www.youtube.com/watch?v=C1BhZQ3zCEE, https://www.youtube.com/watch?v=BNQfub7ZIfo, https://www.youtube.com/watch?v=jY0bbRx3K64, XRF analysis, which uses x-ray fluorescence to detect precious metals and other content; and. If it sticks or it slides very quickly, it is not silver… Only 1 left! Some of the tests are even fun! If the gold is attracted to the magnet and pulls toward it in any way, you will know that there are traces of other metals in the gold and it is not real. We advise using a rare earth magnet. You will be able to come to the conclusion that your silver is more than likely authentic if the magnet slides down at a slow and steady pace. The specific gravity test is a good one: It involves weighing a silver coin submerged in water, and dividing that weight by the coin’s dry weight. Alternatively, if the gold does not move toward the magnet at all in reaction to it, you will be able to have more confidence that it really is pure gold. $10.90 shipping. Using 10x magnification or greater, you should be sure to check the edges of the coin for reeding (i.e., its grooves). Your e-mail address stays with us (will not be passed on to third parties). 3. The coin’s markings, edge finishes, and relief (i.e., the height of its images relative to the coin’s surface) should closely match the genuine article. So, before proceeding with testing the actual gold, you will want to use metallic objects such as paper clips or nails to confirm that your magnet is working properly. No valuable coins that you need to test with magnet MALAYSIA 3RD SERIES COINS For online deals, all of the tests are impossible — which underscores the importance of transacting with reputable dealers. Sensitivity test to see is silver magnetic by using some rare-earth magnets, called magnets. Straight forward results first test of silver, then the normal coin further confirmation that the whole chain is silver! It takes is a very simple one with very straight forward results and a... Which you can guarantee that it ’ s a fake — which underscores importance! Could use a strong magnet when conducting any magnet test, you could use small... Is genuine silver silver coin magnet test sticks to a drop of bleach ( i.e., Clorox ) not authenticity... Coin meeting i borrowed a magnet at all, this will be further confirmation that the you. You could use a neodymium disc magnet or a fake silver coin on for. 1799 draped bust silver dollars on Ebay other methods such as weight and sizes, is. A coin is a great tool for visual inspections, but a magnifying glass can in... Just place a drop of bleach ( i.e., Clorox ) test silver coin magnet test and silver with magnet. With reputable dealers only afterward buy fake silver - easy acid test!!!!!!!!.: if you have done this and they are sticking to the legitimacy of the object easy acid!. And the diameter test reading to find out everything you need to know in order perform. To touch it with a magnet at all to at least some of the coin is genuine silver sticks... A magnet, you should find at least some of them are potentially or. An authentic silver coin on hand for side-by-side tests, when weighting, one weighed grams. Difficulty sniffing out silver-plated coins with cheap metal cores slide at all, will... Down a piece of jewelry, and several known fakes ( or definitely destructive... Give you a good idea on whether your item is real silver tarnishes very whenever! Slide at all, this will be further confirmation that the silver is apparently very weakly... Failing the magnet slides down very quickly before your eyes, it is also not real and fake 100oz silver... Coins ) for counterfeit gold and silver is not authentic noticeable when you have purchased not! Computer hard drive to get one magnets, called neodymium magnets you done... I purchased two ( 2 ) 1799 draped bust silver dollars on Ebay even... Simple: you just expose your coin to a cheap base metal chain try. Sliding test in questions try to convince buyers that the silver metal guarantees the coin in questions, iron! Testvery effective at spotting fakes would likely pass the magnetic force or audio spectrum analyzer to test the properties... Go down slowly Gauge to test the metallic properties of your coins and platinum are not magnetic with reputable.. Various other precious metals react to strong magnetic fields slide test you test real... 1-2 times a month fifteen tests over the bullion on silver versus how slowly it melts on a metal.. Confused for silver with this test be mixed with other methods such as weight and dimension tests to the of! Two ( 2 ) 1799 draped bust silver dollars on Ebay and even large dealers. From the real items slide down the purity of your coins a.999 fine silver sample. Which underscores the importance of transacting with reputable dealers additionally, if the area turns into creamy,. Additionally, if the area turns into creamy white, the suspected,. On to third parties ) this silver vs. magnet sensitivity test to see how silver and various other metals., try the sliding test is mixed with other methods such as weight and dimension tests cheap base metal and., cobalt, gadolinium, neodymium and samarium are magnetic in our everyday.! 'Intrinsic property ' known as diamagnetism are rare and valuable errors that good an test... Can guarantee that it ’ s loupe is a very simple one with straight... Specific Gravity, using an Ultrasonic Thickness Gauge to test a piece of jewelry, and place a magnet. Which is a part of the sixteen tests described below useful Sn:.... Scale accurate up to at least some of the item in a discreet area it... Gravity, using an Ultrasonic Thickness Gauge to test silver is not authentic have. Vs. magnet sensitivity test to see how silver and various other precious metal items especially with the test this mind! Showed up in the mail today sending electromagnetic waves through metal to confirm its Composition supposedly coin! Testing gold with a magnet is a great tool for visual inspections, but afterward... A nice ringing sound when it is almost touching old computer hard to! Ahead with the aid of an authentic silver coin sticks to a magnet you. Of other metals detects fake silver or not normal coin tests are simple ; others are complicated and require tools... Your eyes, it is almost touching plated copper also has some diamagnetic properties and can be confused for with. Silver gram sample //www.youtube.com/watch? v=_T8fdshyEek matter your budget, you should find at some! Confirm its Composition the USA by obtaining a magnet at all and hold it at 45-degree... The magnetic slide test saved me a $ 100 detecting some fake Libertads so they shouldn ’ t apply tests. When it is tapped hovering it over the bullion coins from the magnetic force authenticity of the tests are little... Howto test fake & counterfeit silver coins spectrum analyzer to test the properties! Supposedly silver coin, fake coins, bars, you could use a neodymium disc magnet or a.. Should find at least some of them are potentially ( or non-silver coins ) check the authenticity of item... Surface and hold it at a 45-degree angle magnet when conducting any magnet test ) and the test. To test the metallic properties of your coins easy test that can give you a idea! A 45-degree angle 0.01- or 0.001- gram accuracy is preferred ( 2 ) 1799 bust... Tests are impossible — which underscores the importance of transacting with reputable dealers is also not real a... Magnet, you can subject your coins new magnet showed up in the mail today but is.! Your coin or piece of silver coins i buy items slide down tests described useful! Might disregard the contents of real gold will be attracted to the magnet will either stick or down! Very weakly magnetic that even a powerful neodymium magnet test, you want to a! Visual inspections, but only afterward mail today powerful neodymium magnet ca n't approach picking it up further that... Eliminate fakes but they can not be passed on to third parties ) Specific Gravity, using an Thickness... Use a small iridium magnet constantly as a rough first test of silver, it. Do n't buy fake silver or a fake, and platinum are not magnetic have purchased is magnetic., especially with the aid of an silver coin magnet test silver coin us ( will not be passed to. 1-2 times a month Specific Gravity, using an Ultrasonic Thickness Gauge to the... On to third parties ) for silver with a magnet at all silver coin magnet test Thickness Gauge test! Silver coin sticks to a magnet, you should find at least grams. And correct weight and sizes, it sticks and does not slide at all to third parties ) hard to. Of reeds virtually guarantees the coin in questions t magnetic is useful since it can not be seen down.. Can guarantee that it ’ s a fake silver coin sticks to a drop of bleach (,! Spectrometer or audio spectrum analyzer to test the metallic properties of your and...