Versatile Uses: great for testing jewelry, , antique gold, silver, collectibles, etc. Can be used to test any gold, silver or pure metal from 10K to 24K.
Material: The material gold test stones are made from is sturdy and long lasting, ensuring accurate and results for years to come.
EASY TO USE: Gold Test Stone is extremely easy to use, making it suitable for both professionals and beginners in the jewelry industry.
EASY TEST FOR GOLD PURITY: Specially designed to check the gold content within an item, just apply a drop of test to the touchstone, real gold will remain on the appearance while fake gold will dissolve or oxidize and turn blue.
changinges colour depending on purity: The on the touchstone changinges colour depending on the purity of the gold being tested, making it easy to determine the quality.