Is there a difference between magnets made of different materials (for example barium ferrite, ceramic or gold-plated?
The magnetic field generated by a magnet obeys the laws of plain physics. This means that no matter what the magnet is made of, magnetic fields will all be the same as long as the surface area and thickness of the magnet is the same (that is, if you compared the magnetic fields of three identically sized magnets, with identical thickness and gauss rating, but made of different materials – there would be no difference to the quality of the magnetic field). Hence there is no need to choose a product based on the material used (other than to say that Dick Wicks chooses to specifically not use ceramic magnets because they are more fragile and are more prone to shattering).
