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地质工作者在勘探天然金刚石资源时,需要有一个工业指标,用它来评价金刚石矿床有无工业价值。工业指标中最主要的是最低开采品位和金刚石最小回收粒径。我国现在还没有一个统一的指标,国外也没有一个统一的指标,不但不同国家指标不同,即便在一个国家,对不同的矿床指标也不相同。这是由于确定最低开采品位不但与矿床的规模大小、赋存条件等因素有关,还与所含金刚石的质量有关,而且金刚石的质量是确定最低开采品位的重要因素之一。最小金刚石回收粒径不仅与金刚石的品
Geological workers in the exploration of natural diamond resources, the need for an industrial index, used to evaluate the diamond deposit whether the industrial value. The most important industrial indicator is the lowest mining grade and the smallest recovery diamond particle size. At present, there is no unified indicator in our country and there is no unified indicator in other countries. Not only the indicators of different countries are different, but also the indicators of different deposits are different in one country. This is due to the fact that the determination of the minimum grade is not only related to the size of the ore deposit, the conditions in which it is deposited, but also to the quality of the diamonds contained therein. Moreover, the quality of the diamond is one of the important factors for determining the minimum grade for exploitation. The smallest diamond recovery particle size not only with diamond products