Accurately verify the purity of your gold items with this specially designed Gold Testing Touchstone, a reliable tool for distinguishing real gold from counterfeits quickly and easily. Using acid testing methods, the acid changes color based on the metal's purity, providing clear and immediate results that help you assess gold, silver, and other precious metals with confidence. Key Features: · Precise Gold Verification Tool: Specifically crafted to assess gold content effectively, allowing you to test a variety of items such as jewelry, coins, antiques, silver, and collectibles. · Color-Changing Acid Reaction: The acid test applied on the touchstone changes color according to metal purity — genuine gold remains intact on the stone while fake metals dissolve or oxidize to blue. · Suitable for Multiple Gold Karats: Capable of testing gold in many purities including 10K, 14K, 18K, 22K-24K, as well as silver and pure metals, offering wide applicability. · Easy to Use and Interpret: Simply apply a drop of acid to the touchstone in contact with the item being tested, and observe the color reaction to determine authenticity with minimal effort. · Compact and Portable Design: Available in two sizes—Common and Superior (Small)—this tool is lightweight and easy to carry, making it ideal for both professional and personal use. Specifications: · Condition: 100% Brand New · Sizes:  - Superior (Small): Approx. 6cm (length) x 3.4cm (width) / 2.4in x 1.3in  - Common: Approx. 4.5cm (length) x 3.9cm (width) / 1.8in x 1.5in Package Includes: · 1 x Touchstone (Acid testing solution not included) This Gold Testing Touchstone is an essential tool for jewelers, collectors, and hobbyists seeking a trustworthy and straightforward method to verify precious metal authenticity. Its precise acid testing capability coupled with portability makes it a practical choice for evaluating gold and silver items anytime, anywhere.