normal align=center>冶镁菱镁矿主要参考工业指标

normal align=center>项目

normal align=center>矿石级别

normal align=center>特级品

normal align=center>一级品

normal align=center>二级品

normal align=center>三级品

normal align=center>四级品

normal align=center>ω（MgO）%

normal align=center>≥47

normal align=center>≥46

normal align=center>≥45

normal align=center>≥43

normal align=center>≥41

normal align=center>ω（CaO）%

normal align=center>≤0.6

normal align=center>≤0.8

normal align=center>≤1.5

normal align=center>≤1.5

normal align=center>≤6.0

normal align=center>ω（SiO2）%

normal align=center>≤0.6

normal align=center>≤1.2

normal align=center>≤1.5

normal align=center>≤3.5

normal align=center>≤2.0

normal align=center>最低可采厚度m

normal align=center>2～4

normal align=center>夹石剔除厚度m

normal align=center>1～2