Reliability of ordinary sampling in evaluation of coarse gold occurrences was found to below. It was determined that absolute errors for average gold grade assessment by ordinary sampling increase not only as ore grades enhance but also for low metal grade classes. The need to use rates to correct average grades in orebodies. To estimate the true content in the ore bodies necessity to use empirically derived coefficients for correction of the average contents of Au,calculated from the results of ordinary testing. Correction factor is the reciprocal of the probability of determining the true contents of gold assaying ordinary. To calculate the proposed scheme, which reproduces the charge-discharge processes capacitor or relaxation processes in materials.