Testing Silver With 18K Acid
Testing Silver With 18K Acid . Many jewels are sold claiming to be sterling silver but are fake jewels, namely an economical 925 silver plated metal. Make a scratch long and wide enough to see a silver colored streak, should be easy to see against black. Gold / Silver Tester Acid Test Kit 10k & Puritest Testing Stone New eBay from www.ebay.com.au If test mark turns to intense silvery blue color, there is strong silver content. 10k, 14k, 18k, 22k gold and silver test acid economy test stone and basic instructions. Gold testing acid kit (set of 3 acids) a must for purchasing, appraising and testing precious metals.