Feature
●Acid changes color based on purity. Very easy to use
●Ideal for testing jewelry, coins, antique gold, silver, platinum collectibles
●This touchstone is used to verify the gold content in items
●This solution works for testing any gold which you believe to be 10K, 14K, 18K, 22-24K, silver, and platinum pure
●Apply a drop acid test on touchstone, real gold will stay on the touchstone, fake one will be dissolved or oxidized to blue
[Small]
[Large]
Description
THIS TOUCHSTONE IS USED TO VERIFY THE GOLD CONTENT OF THE ITEM
- The acid changes color according to purity. Very easy to use.
- In the touchstone acid test, real gold will stay on the touchstone, and fake gold will dissolve or oxidize to blue.
- This solution is suitable for testing any gold that you think is 10K, 14K, 18K, 22-24K, silver and platinum.
- It is very suitable for testing jewellery, coins, antique gold, silver and platinum collectibles.
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10K Gold |
14K Gold |
18K Gold |
22-24K Gold |
This touchstone is specially designed for professional jewelers and enthusiasts to determine the appropriate gold carat number and identify precious metals such as gold, silver and platinum. This touchstone should be used with test acid solution and test needle (not included).
How to use: Put a drop of test gold on your jewelry sample, the real gold will stay on the touchstone, and the fake gold will dissolve or oxidize to blue. The acid changes color according to purity. Very easy to use.
Specifications: The size is S and L, respectively, the weight is 66g and 122.8g; the length is 7.6cm / 3in and 9.9cm / 3.9in; the width is 3.8cm / 1.5in and 5.2cm / 2in
Note: The size is manually measured, there may be an error of 0-2 cm, which is a normal phenomenon. And due to the differences between different monitors, the picture may not reflect the actual color of the item. Thanks!