Grab SamplesThey never seem to move the price. I found this.. WE need more fellas!!
Several types of samples are taken during the mining process - such as grab samples and blast hole samples - and are weighed, according to the tons of the material produced from each sampled area, and averaged. A grab sample is taken from every fifth truck carrying material and sent to the waste dumps. A composite from these samples is made at a 2.5 hour period. The results of these samples are compared with the blast hole samples taken from the same area. Grab sampling takes equal amounts of ore at selected intervals from a mine dump or muck pile. THIS METHOD IS NOT USUALLY CONSIDERED A RELIABLE ONE.