Gold Testing Stone 150 x 75 x 15mm

When 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 size may vary.)