Funginite's chemical composition consists primarily of carbon and hydrogen, and when compared to other macerals in the same group of inertinites, its theoretical carbon to oxygen ratio was discovered to be low in comparison. The maceral was also found to have a low molecular reaction characteristic based on the Arrhenius equation due to its 'A' factor value, also known as its pre-exponential factor, making funginite nonreactive in comparison to other macerals subjected to the same amount of activation energy or kinetic energy in a system.
