Ensure accurate verification of precious metals with this high-quality Touchstone, designed specifically for testing gold content in various items. Crafted from durable stone material, this touchstone provides a reliable surface to perform acid tests that distinguish real gold from counterfeit pieces with ease and precision. Ideal for jewelers, collectors, and hobbyists, it supports testing of gold in multiple karats, as well as silver and platinum, making it a versatile tool for precious metal authentication. Key Features: · Reliable Gold Testing Surface: Made from premium stone material, the touchstone offers a consistent and durable platform for acid testing to verify gold purity. · Accurate Acid Reaction: When a drop of acid is applied, real gold remains on the touchstone, while fake gold dissolves or oxidizes to a blue color, providing clear and immediate results. · Multi-Purity Testing Capability: Suitable for testing gold of various karats including 10K, 14K, 18K, and 22-24K, as well as silver and pure platinum, ensuring comprehensive metal verification. · Easy to Use: The acid changes color based on the metal’s purity, simplifying the testing process even for beginners. · Ideal for Various Items: Perfect for testing jewelry, coins, antique gold, silver, platinum collectibles, and other precious metal items. · Two Size Options: Available in two sizes (S: 7.6cm x 3.8cm, L: 9.9cm x 5.2cm) to accommodate different testing needs and preferences. Specifications: · Condition: 100% Brand New · Item Type: Touchstone · Material: Stone · Color: As shown in pictures · Size Options: S (7.6cm x 3.8cm), L (9.9cm x 5.2cm) Package Includes: · 1 x Touchstone This Touchstone is an essential tool for anyone needing precise and trustworthy testing of gold, silver, and platinum items. Its durable stone construction and easy-to-read acid test results make it a must-have for jewelry professionals and precious metal enthusiasts.