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人们往往以矿石或纯金属的价格来评价矿床的价值。如有色金属的精矿,每吨售价自几百元至几千元,非金属矿的售价每吨只有几元至几十元,就认为有色金属矿床比非金属矿床价值高。因此,从地质勘探到工业生产部门,往往对非金属矿床重视不够,认为搞非金属矿床“油水”不大。笔者认为,这种观点有片面性,对我国非金属矿床的勘探开发利用是不利的。应该从矿石怎样转化为商品矿的全过程来分析,既要考虑商品价格,更要考虑转化过程中投入的劳力与资金。表1列出了几种矿床在类似的开采条件下,其精矿与工业矿石的盈利比较。为了便于比较,假定均用地下开采,每吨矿石成本为16元,矿石的总回收率为80％。 由表1可见,这几种矿床刚达到工业品
People tend to evaluate the value of a deposit by the price of ore or pure metal. Such as non-ferrous metal concentrate, the price per ton from a few hundred dollars to a few thousand dollars, the price of non-metallic mineral per tonne only a few dollars to tens of dollars, that non-ferrous metal deposits than non-metallic mineral deposits of high value. Therefore, from geological exploration to industrial production departments, they usually pay insufficient attention to non-metallic mineral deposits and think that it is not enough to engage in non-metallic mineral deposits. The author believes that this view has one-sidedness and is unfavorable to the exploration, development and utilization of non-metallic mineral deposits in China. Should be from the ore into the whole process of commodity mines to analyze, it is necessary to consider the price of goods, but also to consider the conversion process invested labor and capital. Table 1 shows the profitability of several types of ore deposits compared with industrial ores under similar mining conditions. For ease of comparison, the underground mining is assumed to cost 16 yuan per ton of ore and the total recovery of ore is 80%. As can be seen from Table 1, these deposits have just reached industrial products