f Concentration of Electroelastic Fields at the Surface of Texture Quartz Rocks

Near the surface of the crystallite in the piezoelectric polycrystalline materials the local electric and mechanic fields have highest values than in the other places (concentration of electroelastic fiels). Thereby, the complex processes of local electric 'and mechanic destruction of polycrystalline rocks are taking places in those points. Those effects are very important for the studying of geological objects under the high pressure and temperature.