Kaolinmineral resources are mainly limestone, limestone wider distribution.
矿产资源主要有高岭土、石灰石，其中石灰石分布较广。
2
Reasons for the difficulties in washing during kaolinmineral dressing have been analysed.
分析高岭土选矿中难洗涤的原因。
3
According to research of mineralogy, petrology and geochemistry, we discuss kaolinmineral composition, chemistry composition, and change rules and origin of Datong coal series.