Para- and diamagnetism are very weak forces.
Therefore, the weight difference caused by magnetic repulsion during this bullion test is hardly noticeable.
For my 250 g ingot, I measured a difference of about 0,11 g to 0,13 g.
The assembly shown here uses a block magnet Q-60-30-15-N
and would also work for ingots weighing 100 g as well as heavier gold bars.
Using the "DEATH MAGNET
", it would also be possible to test single ounces (31 g), though there are currently no known cases of tungsten counterfeiting in small ingots or even coins.
Note from the supermagnete team:
Please refer to our safety tips
when handling these relatively strong magnets, especially the chapters on Contusions
und Magnetic field