1 Stück Praktischer Säuretest Silber Platin Gold Prüfung Prüfstein Schmuck Werkzeug
ab 2,65 €
Then the real gold will stay on the touchstone, false one will be dissolved or oxidized to blue. Apply a drop acid test on stone. real gold will tay on the touchstone, false one will be dissolved. This solution works for testing any gold which you believe to be 10K, 14K, 18K, 22-24K, Silver, and Platinum pure.
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