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、开岭是岭亚矿物的三种多型。

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.

“”到“刚”,开逐渐减少,岭、明矾、英黄铁矿逐渐增多。