本文主要论述块状矿石显微镜下矿物含量点测法的估计定律，以及此定律的简要证明、测量统计中最低限度样本容量的确定及误差范围。
In this paper, estimating law for mineral content, simple proof of the law and determining lowest sample size and error range in measure and statistics are discussed.
一个工人正在南非钻石公司也称Safdico在哈勃罗内建立的国家艺术钻石科技园内用显微镜检查矿石。
A worker at the South African Diamond Corporation, or Safdico, which has built a state-of-the-art diamond technology park outside Gaborone, examines stones under his microscopes.
显微镜下，矿石为中粒至非晶质。
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