Set of 4 Gold Silver Platinum Jewelry Tester Scratch Streak Stones to use with Acid Test Kits 10K 14K 18K 22K 24K Minerals Precious Metals Detector
Special Features
- Easy and Safe! Protects your Jewelry and Precious Metals During Acid Testing!
- Simply Scratch the Test Stone with your Jewelry then Apply a drop of the Acid to the Stone and Watch the Results Appear!
- Use with Jewelry Testing Acids to Determine the Karat Value and Purity of Gold, and Silver Jewelry, scrap, bars, coins, and much more!
- 3 Convenient Portable Stones Included-- Sizes: Small 2''x''2, Medium 4''x2'' and Large 6''x3''
- Each Genuine GTE Black and White Test Stones includes a Rubber Backing for Non-slip Desktop Testing!
- BONUS- GTE Neutralizer included to clean each stone. *Washable* These Test Stones Can be Used for Hundreds of Tests!
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