Practical Acid kit Gold Testing Touchstone Jewelry Tool Set

Feature 1This kit is used to verify the gold content in items<br> 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:<br> <br> <br> This kit is used to verify the gold content in items<br> <br> This product set is only suitable for gold.<br> Acid changes color based on purity.<br> 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<br> <br> <br> Specification:<br> Material: High purity Graphite Stone & Acid Testing Water<br> Graphite Stone Size: Approx. 4.1 * 1.1 * 7.2cm / 1.61 * 0.43 * 2.83inch<br> Acid Testing Water Size: Approx. 3 * 1.2 * 4.7cm / 1.18 * 0.47 * 1.85inch<br> Total Weight: 90g<br> Type: Jewelry Tools & Equipments<br> <br> Package List:<br> 1 * Graphite Stone<br> 3ml * Acid Testing Water<br> <br> Note:<br> How to use:<br> If you want test your gold ring is real or not, just need rub black stone, and leave a small sample on stone<br> Apply a drop of this solution to a small sample of the item to be tested onto the test stone.<br> Then the real gold will stay on the touchstone, false one will be dissolved or oxidized to blue<br> If the sample disappears, then the item is below the karat of the solution.<br> .wang-edit-text{<br> font-family:'Arial' <br> important;<br> }<br> .wang-edit-text table {<br> border-top: 1px solid <br> 000;<br> border-left: 1px solid <br> 000;<br> }<br> .wang-edit-text table td,<br> .wang-edit-text table th {<br> border-bottom: 1px solid <br> 000;<br> border-right: 1px solid <br> 000;<br> padding: 3px 5px;<br> }<br> .wang-edit-text table th {<br> text-align: center;<br> }