Do natural diamonds exhibit any magnetic response of attraction?
Diamonds themselves produce no such magnetic response, natural or synthetic. With help from Dr J Harris of Glasgow University, we looked at natural diamonds with large inclusions of iron sulphide eg Pyrrhotite and Pentlandite (chemically related to pyrites). Using the raft technique in a large container of water, it was just possible to demonstrate the slightest response to a rare earth magnet. This observation does not contradict the above underlined statement as follows:- 5 Pique 3 Inclusions in Natural Diamond. Typical black halo and rosette inclusions in natural diamond are often iron sulphide minerals and mineral films. Even large inclusions such as the one shown produce only the slightest magnetic response, and would require suspension in water or air to observe the merest attraction response. In a synthetic diamond, such a sizeable inclusion would show a very dramatic attraction response to a rare earth magnet as in Additionally, the synthetic’s inclusion would normally be silve
