This EASY and FUN to use genuine GTE and JSP gold test kit will accurately and quickly determine the karat value and purity of Gold, Silver, and Platinum Jewelry, scrap, bars, coins, and much more! Simply scratch the test stone with your jewelry and apply a drop of the acid to the stone and watch the results appear! Our solutions are guaranteed to be FRESH! This 9 Piece kit includes:- JSP 10K Gold Testing Acid Solution 0.5 oz. 14 g- JSP 14K Gold Testing Acid Solution 0.5 oz.
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Will gold tarnish if I wear it everyday? - Quora