Mineralization is the process of the movement of ore forming materials. The activation,migration and concentration of ore-forming elements closely correlates with the accumulation of stress and energy when "the syn-metallogenic structural system" became active and with the release of stress and energy when the hast rocks fail. Ore-forming elements would be mobilized in consequence of continued accumulation of stress and energy,increase of temperature and the presence of water. The rise of stress would eventually cause the rock of the crust to be deformed,broken and dislocated,to release the stress and energy accumulated so that mobilized ore-forming elements migrate toward and concentrate in structural zones of reduced stresses. Photoelastic and mathematical modelling will give the distribution of stress and energy quantities in and around the region of ore deposits. The close link of the formation and distribution of ores with syn-metallogenic stress field may provide some hints for the known and blind deposits. A quantitative instead of qualitative ore prediction is thus stepping up.