Items | Apply a drop of this solution to a small sample of the item to be tested onto the test |
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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 | For Ideal for testing jewelry coins antique gold silver platinum collectibles and more |
Haveratio Practical Acid Test Kit Silver Platinum Gold Testing Touchstone Jewelry Tool Set Type B Review
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