10K/14K/18K/22-24K Testing Stone, S/L Metal Testing Stone, Testing Platinum for Testing Gold Testing Silver for Testing Jewelry(small)
$6.85
Description
Ideal for testing jewelry, , antique gold, silver, collectibles.This touchstone is used to verify the gold content in items.This solution works for testing any gold which you believe to be 10K, 14K, 18K, 22-24K, silver, and pure.Acid changes color based on purity. Very easy to use.Apply a drop acid test on touchstone, real gold will stay on the touchstone, fake one will be dissolved or oxidized to blue
