Kaolin mineral 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。
Reasons for the difficulties in washing during kaolin mineral dressing have been analysed.
分析高岭土选矿中难洗涤的原因。
According to research of mineralogy, petrology and geochemistry, we discuss kaolin mineral composition, chemistry composition, and change rules and origin of Datong coal series.
通过矿物学、岩石学和地球化学研究，对大同煤系高岭岩矿物组成、化学组成，及其变化规律和成因进行了系统探讨。
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