Gold Testing Stone 150 x 75 x 15mm Witschi Micromat C System For Mechanical Movements 00mm) Punch

00mm) Punch

x15 Magnification

These adhesive labels allow you to tag sale items and repair jobs quickly and easily

You can also use this tool to secure your stone setting with shellac so it is easier to work on

Gold Testing Stone 150 x 75 x 15mm Witschi Micromat C System For Mechanical Movements 00mm) PunchWhen testing for gold, always suspect that the item could be plated. Start by rubbing the testing stone over the piece to remove any plating on the surface. Once you've prepared the item, apply the acid as required on the touchstone to test. Applying testing acid directly onto the metal will discolour the item, so by using the stone as an intermediary, if the piece is returned to the customer, there will be no acid spoil inflicted on the metal. (Stone