What is Diamagnetism?

Diamagnetism is the magnetisation in the opposite direction to that of the applied magnetic field. Scientifically, these elements have all their electrons paired. When electrons are paired, the opposite spins of the electrons cancel each other out so that when the material is placed in a magnetic field, it is repelled. Most organic compounds, including water and all plants are diamagnetic, but there are also basalt deposits that are diamagnetic, therefore a paramagnetic test before applying different materials can be very worthwhile. Following along this logic, wet soil samples may give false low paramagnetic readings because of the diamagnetic content of the water.