3ML Acid Test Kit compatible Gold Silver Platinum Jewelry Testing Tool

3ML Acid Test Kit for Gold Silver Platinum Jewelry Testing Tool 3ML Practical Acid Test Silver Platinum Gold Testing Examination Touchstone Jewelry ToolFeatures:1. This product is used to verify the gold content in items!2. Ideal for testing jewelry, coins, antique gold, silver, platinum collectibles, and more!3. The effect is obvious and easy to operate and watch.4. Just a little drops will produce the desired result.5. Acid changes color based on purity. Very easy e.Specification:Type: Jewelry Tools & EquipmentsMaterial: High purity Graphite Stone & Acid Testing WaterCapacity: 3MLPackage List:3ml * Acid Testing LiquidHow e:Apply a drop of the solution to a small sample of the item to be tested on the test stone.Then the real gold will remain on the test stone, wrong one will be dissolved or oxidized to blueIf the sample disappears, then the item is below the carat of the solution.