Large PuriTEST Testing Stone 2" x 4" Gold Testing Solutions Kit Silver Platinum Scratch

This stone is ideal for use with test acids and testing solutions to determine karat of gold. It is made of natural stone, is easy to work with and convenient for your workspace, or those on-the-go. This stone measures 2 x 4 x 1/4. Puritest Testing Stone

• Ideal for use with test acids and testing solutions to determine karat of gold
• Made of natural stone
• 2 inches by 4 inches by 1/4 inch
• Easy to use and work with
• Convenient for workspace or on-the-go testing