  A theoretical explanation is provided for the experimental evidence that
fracturing piezoelectric rocks produces neutrons. The elastic energy
micro-crack production ultimately yields the macroscopic fracture. The
mechanical energy is converted by the piezoelectric effect into electric field
energy. The electric field energy decays via radio frequency (microwave)
electric field oscillations. The radio frequency electric fields accelerate the
condensed matter electrons which then collide with protons producing neutrons
and neutrinos.
