Scratch It
Get a piece of tile or ceramic and use it to scratch the piece of gold you want to test — just make sure you are scratching a spot that won't damage the piece. If the tile/ceramic leaves a black or dark mark, then sorry. That's not real gold.
Carefully apply a drop of nitric acid to the scratch. Genuine gold will remain unchanged, while fake gold may react, turning green or milky as the acid ... |
Place a drop of the 10K solution to the scratch made. If the solution dissolves the scratch on the stone. it means the object is less than 10K gold or not gold ... |
What is the Scratch and Acid Test for Gold? - BullionMax www.bullionmax.com › gold-scratch-acid-test
24 сент. 2021 г. · You can test a gold piece by exposing it to varying strengths of nitric acid which will help determine the purity. |
This blog will explain how to do a simple gold test in your house. You may choose from more than seven different methods when it comes to at-home gold testing. |
Best methods for testing gold? : r/jewelers - Reddit www.reddit.com › jewelers › comments › best_...
18 янв. 2024 г. · You literally scratch the black gold testing stone with whatever piece you want to test it makes a gold colored line. I start with the 10k acid ... |
14 мар. 2023 г. · Acid scratch tests involve applying a small drop of acid to a small area of the metal and observing the reaction. Different acids are used to ... |
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