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我国高岭土资源丰富 ,矿床类型多 ,其中风化型和含煤建造沉积型是两类比较重要的高岭土矿床 ,对这两类高岭土矿床化学组成、矿物组成及高岭石矿物学特征的异同点进行研究和探讨。其结果表明 ,风化型高岭土的化学成分一般属硅高铝低型 ,钾含量偏高 ,钛含量低 ,铁含量则随成矿母岩和风化条件的不同波动范围大 ,矿物组成主要为结晶度较差的高岭石、水云母和石英 ,以及极少量的管状埃洛石。含煤建造沉积型高岭土一般属铝高硅低型 ,钾含量低 ,钛含量明显偏高 ,矿物组成简单 ,高岭石含量 >95 % ,结晶度较好。
China is rich in kaolin resources and has many types of deposits. The weathering-type and coal-bearing sedimentary types are two important types of kaolin deposits. The similarities and differences between the chemical compositions, mineral compositions and kaolinite mineralogical characteristics of these two types of kaolin deposits are studied And explore. The results show that the chemical composition of the weathering type kaolin is generally high silicon and aluminum low type, high potassium content, low titanium content, iron content with the different rock metal forming mother rock and weathering a wide range of fluctuations in mineral composition mainly for the degree of crystallinity Poorer kaolinite, aqua mica and quartz, and a very small amount of tubular halloysite. Coal-bearing sedimentary-type kaolin generally belong to the low-Al-Si, low potassium content, significantly higher titanium content, simple mineral composition, kaolinite content> 95%, good crystallinity.