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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 platinum pure.
4. Acid changes color based on purity. Very easy to use.
5. Ideal for testing jewelry, coins, antique gold, silver, platinum 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
jose a millan
Reviewed in the United States on October 10, 2024
Nice to check gold
kixon66
Reviewed in the United States on September 25, 2021
Exactly as described
Pat
Reviewed in the United States on January 20, 2021
Not used the stone but it looks like it should. I am happy with it.
dustinzor
Reviewed in Canada on June 25, 2020
No acid to test it and no indicators that acid does t come. Waste of shipping fees
Luke
Reviewed in Canada on May 1, 2020
The stone would be more effective if it was darker black.
ken mcmahon
Reviewed in Canada on November 15, 2020
Found the same stone much cheaper and larger
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