Test Stone - Natural, 2” x 4” x ¼”

Our natural testing stones are a great value. Use with solutions and test needles to determine the karat value of articles to be tested. Great quality and economical! Dimensions: 2” x 4” x ¼”.

• Ideal for use with test acids and testing solutions to determine karat of gold
• Made of natural stone
• 2” by 4” by ¼”
• Easy to use and work with
• Convenient for workspace or on-the-go testing