极高的蒸发率使厚实的盐矿逐渐沉积，包括食用盐和石膏层(一种白垩矿，是墙板壁的主要成分)。
High rates of evaporation deposit thick layers of salt minerals, such as common table salt and gypsum (a chalky mineral that is a major component of wallboard).
根据砷酸盐矿物的组合类型可较快速地确定原生矿床(体)的工业类型和找矿方向。
They may help to define the industrial type of primary deposit and prospecting by the association type of arsenate minerals.
生物方法则利用一些微生物的分泌物能够溶解铝硅酸盐矿物的特性，将铝土矿中的硅脱除。
The biological ways are to make use of characteristics that secretion secreted from some microorganisms can dissolve the aluminosilicates, and then the silicon may be removed from bauxite.
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