Features:
1. This touchstone is used to check the gold content of items.
2. Apply acid drop test to touchstone, real gold will remain on touchstone, fake will dissolve or oxidize blue.
3. This solution works to test any gold you think is 10K, 14K, 18K, 22-24K, silver and pure platinum.
4. The acid changes color depending on the purity. Very easy to use.
5. Ideal for testing jewelry, , antique gold, silver and platinum collectibles.
Specification:
Condition: 100% Brand New Item Type: Touchstone Material: Stone
Color: As shown in the picture
Weight: approx. 55-65g
Optional Type: 1#Common, 2#Upper (Small)
List of packages:
1 * Touchstone (Acid test water not included)