Small Natural Bite Stone 50 x 40mm for Testing Gold (Tester)

• Small natural touch stone 50 x 40 mm for gold testing
• - 1 instruction manual in French provided by Test-Gold.

Description Small natural touchstone size: 50 mm x 40 mm. Without reagents the stone is useless. Visit our Test-or shop, if you need testers for gold, silver or platinum. The 'touchstone' test is intended to evaluate the title of gold, silver or platinum materials. A method of extreme simplicity and very quick, the fingerstone test allows you to determine with relatively good precision the title of gold, silver or platinum. Since it requires only a few materials and does not damage the metal in question, it is therefore very used by jewellers and goldsmiths to experiment with precious metal objects.