Practical Acid Test Kit Gold Testing Touchstone Jewelry Tool Set

Features: This kit is used to verify the gold content in items! Apply a drop of this solution to a small sample of the item to be tested onto the test

GTE 2''x2'' Small Premium Black Scratch Touchstone for Acid Gold Silve – GOLD TESTING EQUIPMENT

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Gold Test Kits

Then the real gold will stay on the touchstone, false one will be dissolved or oxidized to blue. Apply a drop acid test on stone. real gold will stay

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