Feature

●Apply a drop of acid test to the touchstone, real gold will remain on the touchstone, fake will be dissolved or oxidized to blue.
●This solution is suitable for testing gold you believe to be 10K, 14K, 18K, 22-24K, Silver and Platinum pure.
●This touchstone is used to check the gold content of items.
●Ideal for testing jewelry, coins, antique gold, silver and platinum collectibles.
●Acid changes color depending on purity. Very easy to use.


Description

Features:
1. This detection stone is used to check the gold content in items.
2. Apply drop acid test to the detection stone, real gold will remain on the detection stone, fake will be dissolved or oxidized to blue.
3. This solution is suitable for testing gold you believe to be 10k, 14k, 18k, 22-24k, silver and platinum pure.
4. Acid changes color depending on purity. Very easy to use. 5. Ideal for testing jewelry, coins, antique gold, silver and platinum collectibles. >Color: As the picture
Weight: Approx. 55-65g
Optional Type: Common, Superior (Small)
Size:
01: Approx. 71 x 41 x 5 mm / 2.8 x 1.6 x 0.2 inch 02: Approx. 76 x 41 x 6 mm / 3.0 x 1.6 x 0.2 inch Package List: />1 * Identification Stone (Acid Test Water not included)