Another bad day in the world of stacking Silver. A friend of mine called me and I drove over to his house. He showed me his new silver bars that he had bought from eBay. Right away something inside me screamed out Oh-No. Why, because he told me that he paid under spot for them.
This should be a red flag. No-One will sell their Precious Metals under Spot Price. It just doesn't happen. So I took out my home made Kit which consists of Digital Scale, Magnifying Glass, Outside Micrometer, 300 mm Ruler & a Earth Magnet. Also I just added the Sunshine Decode Card. When I Weighed his first bar it came to 28.8 Grams. Uh-Oh, it should weigh 31.1 Grams.
Remember a Troy OZ is 31.1 Grams. After looking at his order I did notice that he had bought what is called German-Silver. German Silver has No Silver in it, it consists of Copper, Zinc and Nickel. My poor friend asked me how do I test for Silver and What do I look for? So I told him the first thing to do is to make a kit like mine. Most people will say "You forgot about the acid's in your kit!". I do not use Acid because if the top layer is silver then it shows that it is silver. You must file into the bar or coin to see if the inside is silver. Once you do that, I believe you ruin the bar or coin. Not something you want to do if it is a real nice bar or coin.
If you plan on going out to buy Silver from a flea market with this little kit of mine. There are many ways to check your silver. Think of a police officer gives a sobriety test. He does mtheore than one type of test before he arrests you for a DUI. LOL. You should do the same. Try all the Tests. Or at least the ones that won't damage your silver.
Ping Test: Tapping your Silver with another bar to hear a ringing (sounds like a bell ringing). This is a good test you just need practice and some real silver to know the sound it should make. Magnet Test: I Like this one, but it's not always guarantee without the other tests. You need a kind of strong magnet. Place magnet on silver bar and slant bar at a 45 degree angle. The magnet should slide down the bar but at a slow pace. Place the magnet on a piece of plastic and slide it down and you will see it slide rather fast. In doing this method you will know without a doubt that at least your silver is not faked with a magnetic metal core. Weight Test: Of course this should be your first test. ALL precious metal are weighed in Troy Ounces (That's 31.1 Grams, Not 28 Grams!!). Most scales have troy ounces as a choice, if it doesn't then it will have grams. If your scale is only 250 Gram scale (Like the one I have) then before you turn on your scale place a 100 gram weight on the scale to calibrate it with the weight. Then remove the weight and it will read -100 Grams. Then when you place your 10 troy oz bar on the scale it will read 211 Grams which makes the 211 (Scale Reads) plus the - 100 (Calibration) = 311 Grams or 10 Troy Ounces. This is a good trick to have your scale reading up to twice what the scale can read. Measurement Test: This one is a little tricky on bars, but great for coins. They make a great coin checker called The Fisch. It will cost you around $169, but if you buy a lot of coins, then you need it, or I recommend it. Otherwise all your bars are around the same size. Check the length, width and thickness measurements. This is because if the bar is fake then they will have to compensate size for weight. Example: A "1 OZt" SilverTowne Silver bar measures 50.4 mm in Length, 28.57 mm in width, and 2.13 mm in thickness. Then it must still weigh 31.1 Grams or 1 Troy Ounce (OZt). Now sizes due still vary, so you will need real bars to compare to. Measurement Test works with the Weighing Test. Also note that these measurements are from the stamped bars, Not the poured bars.