Practical Acid Kit Gold Testing Touchstone Jewelry Tool Set

Practical Acid Kit Gold Testing Touchstone Jewelry Tool Set Description

Feature 1This kit is used to verify the gold content in items
2This product set is only suitable for gold. 3Acid changes color based on purity. 4Very easy to use. Just apply a drop of this solution to a small sample of the item to be tested. 5The product set consists of high purity graphite stone and acid test waterSpecificationFeatures:


This kit is used to verify the gold content in items

This product set is only suitable for gold.
Acid changes color based on purity.
Very easy to use. Just apply a drop of this solution to a small sample of the item to be testedThe product set consists of high purity graphite stone and acid test water


Specification:
Material: High purity Graphite Stone & Acid Testing Water
Graphite Stone Size: Approx. 4.1 * 1.1 * 7.2cm / 1.61 * 0.43 * 2.83inch
Acid Testing Water Size: Approx. 3 * 1.2 * 4.7cm / 1.18 * 0.47 * 1.85inch
Total Weight: 90g
Type: Jewelry Tools & Equipments

Package List:
1 * Graphite Stone
3ml * Acid Testing Water

Note:
How to use:
If you want test your gold ring is real or not, just need rub black stone, and leave a small sample on stone
Apply a drop of this solution to a small sample of the item to be tested onto the test stone.
Then the real gold will stay on the touchstone, false one will be dissolved or oxidized to blue
If the sample disappears, then the item is below the karat of the solution.
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