Through the flotation test, the occurrence form, main carrier mineral and arsenic abundance in both types of coal are analyzed and calculated.
通过浮选试验，对两种类型煤中砷的赋存形态、主要载体矿物及含砷丰度进行了分析和计算。
2
Mineral assemblage, texture and field occurrence indicate an igneous origin for the charnockites.
矿物组成、结构和野外产状表明：这些紫苏花岗岩是火成成因的。
3
This paper analyzes the mode of occurrence and mineral chemical, petrochemical and element geochemical characteristics of eclogite in the Dabie Mountains area.