Accurately verify the authenticity and purity of your precious metals with this Detecting Stone, designed specifically for gold testing. Crafted from durable stone material, this testing stone provides a reliable surface to perform acid tests, making it an essential tool for jewelers, collectors, and hobbyists. Whether you need to test gold, silver, or platinum items, this detecting stone offers a simple and effective solution to determine metal purity quickly and confidently. Key Features: · Reliable Gold Content Verification: Use this detecting stone to apply acid tests and verify gold content in various items, ensuring accurate identification of real gold versus fake. · Clear Acid Reaction: When a drop of acid is applied, real gold remains on the stone while counterfeit metals dissolve or oxidize to a blue color, providing a clear visual indicator. · Versatile Testing Capability: Suitable for testing multiple purities of gold including 10K, 14K, 18K, 22-24K, as well as silver and pure platinum, making it a versatile testing tool. · Easy to Use: The acid changes color based on the metal’s purity, simplifying the testing process for both professionals and beginners. · Ideal for Various Items: Perfect for testing jewelry, coins, antique gold, silver, platinum collectibles, and other precious metal items. Specifications: · Condition: · Item Type: Detecting Stone · Material: Stone · Color: As shown in the picture · Weight: Approx. 55-65g · Size: Approx. 71 x 41 x 5mm (2.8 x 1.6 x 0.2 inches) · Optional Type: Common, Superior (Small) Package Includes: · 1 x Detecting Stone (Acid Testing Solution Not Included) This Detecting Stone is a durable and practical accessory for anyone needing to authenticate precious metals quickly and accurately. Its compact size and straightforward use make it a must-have tool for gold testing and precious metal verification. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.