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https://bellatory.com/fashion-accessories/Is-Your-Old-Gold-And-Silver-Jewelry-Real-Now-You-Can-Know
Feb 23, 2018 · 2. Magnet Test. Some suggest using a magnet to test gold or silver jewelry for authenticity. While any piece that sticks to the magnet is NOT gold or silver, it is not a reliable test. Only ferrous (iron-based) metals are magnetic, and only the most cheaply made fake jewelry consists of coated iron or steel. These are so obvious no test is necessary.
https://www.sbcgold.com/blog/test-gold-5-simple-ways-spot-fake-gold/
Jul 24, 2014 · Genuine gold will stand up to your attempt to conduct a nitric acid test at home. Make a tiny mark on the piece of gold to penetrate the surface. Drop a small amount of liquid nitric acid on that scratch and wait for a chemical reaction. Fake gold will immediately turn green where the acid is. Gold-over-sterling silver will become milky in appearance.
https://www.wikihow.com/Test-Gold-with-Vinegar
Aug 26, 2019 · Applying the Vinegar 1. Fill an eyedropper with white vinegar. White vinegar is the most acidic vinegar, so it works the best for testing... 2. Clean your gold with a cloth or rag to remove dirt or debris. Your gold piece should be clean so that your test... 3. Use an eyedropper to put 2 or 3 drops ...95%(20)
https://jewelryjealousy.com/how-to-tell-if-silver-is-real/
Sep 11, 2018 · There is a less invasive chemical test called the silver Acid Test. This involves purchasing a specific acid which you would then place a few drops of onto the item. If the acid becomes red, your item is genuine sterling silver. But if your acid turns brown or green, it means that the concentration of silver is only 80% or 50%, respectively.
https://www.sciencecompany.com/How-to-Test-Gold-Silver-and-Other-Precious-Metals.aspx
How to Test Gold, Silver and Other Precious Metals. To start, make three test solutions as follows: Bottle #1: Schwerter's Testing Solution - Mix 1 gram of Potassium Dichromate with 22ml of concentrated Nitric acid and 8ml distilled water. Bottle #2: Mix 1 part (by volume) Hydrochloric acid and 50 parts of Nitric acid. Add to 12 parts of distilled water.
https://ourpastimes.com/test-gold-vinegar-5854786.html
Use a chemical test with a liquid known as silver reagent. Put a small drop on a inconspicuous bend or seam in the metal. If the place turns red, it is silver. Coin silver (800, or 80 percent silver) will turn brown, while 500 silver has a high copper content and will turn green.
https://treasurepursuits.com/how-to-test-silver/
The Nitric Acid Test is used to check if silver is pure or plated. To do so, file a small part of the item in a discreet area where it cannot be seen. Apply a few drops of nitric acid. If the area turns into creamy white, the silver is pure or sterling.
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