Sampling is the process of taking a small portion of an article such that the consistency of the portion shall be representative of the whole,” (Baxter and Parks, 1939).
“An orebody is a mixture of minerals in proportions that vary in different parts of the mass. As a consequence, the proportion of contained metals also varies from place to place. Therefore, a single sample taken in any particular place would not contain the same proportion of metals as does the orebody as a whole except by a highly improbable coincidence.
