摘要
本文以80、90年代的研究资料及测试成果说明，我国产的具有民族特色的图章石（包括寿山石、青田石、巴林石、昌化石等）主要矿物成分并非叶蜡石，而是高岭石的三个多型矿物──迪开石、珍珠陶石和高岭石。其中大多为迪开石及迪开石与高岭石的过渡矿物，少数为高岭石，个别为珍珠陶石。
According to the study data of the eighties and the ninties,this paper indicates that the main mineral component of the stamp stone with the distinctive national features produced in China (include agalmatolite,Qingtian stone,Balin stone and Changhua stone etc. )are not pyrophyllite but the three polytypic minerals of kaolinite -dickite, nacrite and kaolinite. Most of them are dickite and the transition-mineral of dickite and kaolinite,few are kaolinite and nacrite.
