Kaolinite,dickite and nacrite are polytypes of the kaolinite family,in which kaolinite is quite commmon while nacrite is very rare in nature.

珍珠陶、地开和高是高三种多型。

The research results show that the main minerals in "Di" of Changhua Chicken Blood Stone are dickite and kaolinite, and minor minerals are alunite, halloysite, quartz and pyrite, et al.

从“冻地”到“刚地”,地开逐渐减少,高、明矾、英和黄铁逐渐增多。