There are many sampling methods for minerals, and each mineral has different sampling methods. The commonly used methods are briefly described as follows:
First, the groove method: in the part of the ore body to be sampled, a certain size of the groove is cut, and all the ore rocked in the groove is taken as a sample.
Second, the picking block method: from the collected rock piles, on the ore truck, ship, belt or finished ore pile according to a certain grid distance or point spacing, pick out roughly equal pieces of ore, combined into one sample.
Third, the engraved line method: one or several continuous or regular continuous line-shaped ditch is engraved on the excavation of the rock, and all the ore that has been chiseled is collected as a sample.
Fourth, the grid method: a certain shape of the rope network or a grid is arranged in the rock outcrop, and the ore rock is taken as a sample at the intersection or center of the grid.
5. Eye-opening method: The ore collected during the perforation process is used as a sample.
Sixth, the whole lane method: all or part of the ore within the tunnel of a certain footage of the mine body is taken as a sample.
7. Stripping method: A layer of ore rock is drilled as a sample at a certain distance on the surface of the ore sample to be sampled.
8. Drilling method (also called core sampling): The core, cuttings and rock powder obtained from drilling are used as samples.
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