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1. This touchstone is used to verify the gold content in items.
2. Apply a drop acid test on touchstone, real gold will stay on the touchstone, fake one will be dissolved or oxidized to blue.
3. This solution works for testing any gold which you believe to be 10K, 14K, 18K, 22-24K, silver, and pure.
4. Acid changes color based on purity. Very easy to use.
5. Ideal for testing jewelry, coins, antique gold, silver, collectibles.
Specification:
Condition: 100% Brand New
Item Type: Touchstone
Material: Stone
Color: As pictures shown
Size: S, L (optional)
Size Length Width S 7.6cm/3in 3.8cm/1.5in L 9.9cm/3.9in 5.2cm/2in
Package list:
1 * Touchstone
Devon Rauenzahn
Reviewed in the United States on July 8, 2022
Color of stone makes it hard to see results
Raudelio Amado
Reviewed in the United States on September 18, 2021
Bien
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