Induced polarization (IP) is the science of studying the reversible charge storage in the interface of materials with different dielectric properties. IP has various types, including the electrode polarization. Due to the strong polarization response of metallic minerals, IP has been used for decades in the exploration of ore deposits. IP response was measured in time/frequency-domain (TD/FD) methods. In these methods, IP parameters are related to the physical properties of subsurface environments. One of the IP properties is chargeability which characterizes the volume content of ores in the mineralization areas. In this paper, added to explaining the relation between chargeability in TDIP and FDIP, a model was introduced to calculate the volume content of metallic minerals by chargeability. This model was applied to the experimental data. The results showed that the measurement of the volume content of ores by this model is precisely possible.