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汞矿床一般是不大稳定的,因而它的样品加工要求比一般非金属样品严格得多.因为加工质量的好坏往往影响矿区的正确评价,而且汞的最低工业品位为万分之六到万分之四.这样低的品位,靠肉眼鉴定是很困难的,只能靠化学分析来解决.而化学分析的样品是经过加工取得的,即使化学分析的结果很正确,但加工质量不好时,也就无法反映出矿石的真正含量.例如过去许多曾经否定了的矿区,目前经过地方进行生产,证明是有工业价值的;又如某矿区有一个钻孔的矿心,目测品位很高,但分析结果却不够工业品位,经过严密的检查,证明分析结果所以错误,主要是由于矿样筛时,没有保证质量;其次是加工时没有严格遵照Q=Kd~2公式进行缩分;第三是化学分析
Mercury deposits are generally less stable and therefore require much more sample processing than non-metallic samples because the quality of the processing often affects the correct evaluation of the mines, and the minimum industrial grade of mercury is between sixty thousand and ten thousandths This low grade, by the naked eye is very difficult to identify, can only rely on chemical analysis to solve the chemical analysis of the sample is obtained after processing, even if the results of chemical analysis is correct, but the processing quality is not good , The true content of ore can not be reflected, for example, many formerly negated mines have been produced in places that proved to be of industrial value in the past. For another example, a mining area has a drilled hole with a high visual grade, However, the results of the analysis are not sufficient for industrial grade. After rigorous examination, the results of the analysis were proved to be wrong, mainly because of the lack of quality assurance when the sample was sieved. Secondly, the processing did not follow the formula of Q = Kd ~ 2 and the third It is chemical analysis